Package deal
MATH Entire Course Project, Addendum; Homework-Quiz, Discussions, Homework Problems, Quiz (Package Deal)
MATH Entire Course Project, Addendum; Homework-Quiz, Discussions, Homework Problems, Quiz (Package Deal)
[Show more]MATH Entire Course Project, Addendum; Homework-Quiz, Discussions, Homework Problems, Quiz (Package Deal)
[Show more]1.	Question: Is each item below an example of descriptive or inferential statistics? 
2.	Question: In each case, identify the type of data (or level of data): 
3.	Question: For the following frequency distribution: 
4.	Question: Assuming that the dataset 17, 15, 3, 22, 11, 7, 9 is a sample. 
5.	Ques...
Preview 2 out of 6 pages
Add to cart1.	Question: Is each item below an example of descriptive or inferential statistics? 
2.	Question: In each case, identify the type of data (or level of data): 
3.	Question: For the following frequency distribution: 
4.	Question: Assuming that the dataset 17, 15, 3, 22, 11, 7, 9 is a sample. 
5.	Ques...
A company makes men's button-up dress shirts and is considering changes to its design. Howmight the company go about finding a good sample of individuals? These decisions wouldincludemethodofsampling,locationofsampling,populationtoconsider,andnumberinsample,in additionto any other considerations.
Preview 2 out of 8 pages
Add to cartA company makes men's button-up dress shirts and is considering changes to its design. Howmight the company go about finding a good sample of individuals? These decisions wouldincludemethodofsampling,locationofsampling,populationtoconsider,andnumberinsample,in additionto any other considerations.
A company makes men's button-up dress shirts and is considering changes to itsdesign.Howmightthecompanygoaboutfindingagoodsampleofindividuals?Thesedecisions would include method of sampling, location of sampling, population toconsider,and numberin sample,inaddition toanyotherconsiderations.
Preview 4 out of 74 pages
Add to cartA company makes men's button-up dress shirts and is considering changes to itsdesign.Howmightthecompanygoaboutfindingagoodsampleofindividuals?Thesedecisions would include method of sampling, location of sampling, population toconsider,and numberin sample,inaddition toanyotherconsiderations.
1.	Question: Suppose you are an operations manager for a plant that manufactures batteries. Give an example of how you could use descriptive statistics to make better managerial decisions. Give an example of how you could use inferential statistics to make better managerial decisions.Say whether thi...
Preview 2 out of 7 pages
Add to cart1.	Question: Suppose you are an operations manager for a plant that manufactures batteries. Give an example of how you could use descriptive statistics to make better managerial decisions. Give an example of how you could use inferential statistics to make better managerial decisions.Say whether thi...
1.	Question: Classify each of the following as nominal, ordinal, interval, or ratio data. 
2.	Question: The activity or the process of collecting the data on the population is called . 
3.	Question: A company wants to learn the customers’ purchase habits of buying certain products. This company di...
Preview 2 out of 8 pages
Add to cart1.	Question: Classify each of the following as nominal, ordinal, interval, or ratio data. 
2.	Question: The activity or the process of collecting the data on the population is called . 
3.	Question: A company wants to learn the customers’ purchase habits of buying certain products. This company di...
1.	Question: True/False. 2.13 in valid probability. 
2.	Question: True/False. The union of two events is the probability of both events occurring 
3.	Question: Determine if each variable below is discrete or continuous: 
4.	Question: Given: We have a sample space S with several events defined on it....
Preview 1 out of 3 pages
Add to cart1.	Question: True/False. 2.13 in valid probability. 
2.	Question: True/False. The union of two events is the probability of both events occurring 
3.	Question: Determine if each variable below is discrete or continuous: 
4.	Question: Given: We have a sample space S with several events defined on it....
Introduction	 
Yourinstructorwillprovideyouwithadatafilethatincludesdataonfivevariables: 
SALESrepresentsthe numbersales madethisweek.CALLSrepresentsthenumberofsalescallsmadethisweek.TIME represents the average timeper callthisweek. 
YEARSrepresentsyearsofexperienceinthecallcenter. 
TYPErepresentsth...
Preview 1 out of 1 pages
Add to cartIntroduction	 
Yourinstructorwillprovideyouwithadatafilethatincludesdataonfivevariables: 
SALESrepresentsthe numbersales madethisweek.CALLSrepresentsthenumberofsalescallsmadethisweek.TIME represents the average timeper callthisweek. 
YEARSrepresentsyearsofexperienceinthecallcenter. 
TYPErepresentsth...
Describe a situation where you see probabilities or might see probabilities. Then present thisprobabilityasaconditionalprobability.Inresponse,otherstudentscanmakeassumptionsaboutthe conditional probability table that could accompany such a situation and pose a question for aspecificprobability.Final...
Preview 1 out of 1 pages
Add to cartDescribe a situation where you see probabilities or might see probabilities. Then present thisprobabilityasaconditionalprobability.Inresponse,otherstudentscanmakeassumptionsaboutthe conditional probability table that could accompany such a situation and pose a question for aspecificprobability.Final...
Describe a situationwhere youseeprobabilities or might see probabilities.Thenpresent this probability as a conditional probability. In response, other students canmake assumptions about the conditional probability table that could accompany such asituationandposeaquestionforaspecificprobability.Fina...
Preview 1 out of 1 pages
Add to cartDescribe a situationwhere youseeprobabilities or might see probabilities.Thenpresent this probability as a conditional probability. In response, other students canmake assumptions about the conditional probability table that could accompany such asituationandposeaquestionforaspecificprobability.Fina...
1.	Question: If the occurrence or non occurrence of one event does not affect the occurrence or non occurrence of another event, the two events are ___________ . 
2.	Question: In any statistical experiment if the occurrence of one event precludes the occurrence of the other events, the events of the...
Preview 2 out of 11 pages
Add to cart1.	Question: If the occurrence or non occurrence of one event does not affect the occurrence or non occurrence of another event, the two events are ___________ . 
2.	Question: In any statistical experiment if the occurrence of one event precludes the occurrence of the other events, the events of the...
1.	Question: If X = {1, 2, 4, 8, 9, 10, 16} and Y = {3, 4, 7, 9, 15}, then X ∩ Y is _________. 
2.	Question: If the occurrence of one event precludes the occurrence of another other event, then the two events are ______________. 
3.	Question: A listing of all elementary outcomes (i.e. the outcomes...
Preview 2 out of 10 pages
Add to cart1.	Question: If X = {1, 2, 4, 8, 9, 10, 16} and Y = {3, 4, 7, 9, 15}, then X ∩ Y is _________. 
2.	Question: If the occurrence of one event precludes the occurrence of another other event, then the two events are ______________. 
3.	Question: A listing of all elementary outcomes (i.e. the outcomes...
When trying to determine probabilities, one must first assess whether the variable would have a normal distribution. Using the tools from this course, what are some methods that could be used to determine whether a variable has a normal distribution?
Preview 1 out of 1 pages
Add to cartWhen trying to determine probabilities, one must first assess whether the variable would have a normal distribution. Using the tools from this course, what are some methods that could be used to determine whether a variable has a normal distribution?
Whentryingtodetermineprobabilities,onemustfirstassesswhetherthevariable would have a normal distribution. Using the tools from this course, what are somemethodsthatcouldbeusedtodeterminewhetheravariable hasanormaldistribution?
Preview 1 out of 1 pages
Add to cartWhentryingtodetermineprobabilities,onemustfirstassesswhetherthevariable would have a normal distribution. Using the tools from this course, what are somemethodsthatcouldbeusedtodeterminewhetheravariable hasanormaldistribution?
When trying to determine probabilities, one must first assess whether the variable wouldhave anormaldistribution. Usingthetoolsfromthiscourse,whataresomemethodsthatcouldbeusedtodeterminewhethera variablehasanormaldistribution?
Preview 4 out of 99 pages
Add to cartWhen trying to determine probabilities, one must first assess whether the variable wouldhave anormaldistribution. Usingthetoolsfromthiscourse,whataresomemethodsthatcouldbeusedtodeterminewhethera variablehasanormaldistribution?
1.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the z-value for a score of 80? 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the probability of obtaining a score less than...
Preview 2 out of 5 pages
Add to cart1.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the z-value for a score of 80? 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the probability of obtaining a score less than...
1.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the z-value for a score of 80? 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the probability of obtaining a score less than...
Preview 2 out of 12 pages
Add to cart1.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the z-value for a score of 80? 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the probability of obtaining a score less than...
1.	Question: Given a random variable X follows a Normal distribution with mean 10 and standard deviation 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. 
3.	Question: A normal distribution is defined by two parameters, the mean and the Standard...
Preview 2 out of 8 pages
Add to cart1.	Question: Given a random variable X follows a Normal distribution with mean 10 and standard deviation 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. 
3.	Question: A normal distribution is defined by two parameters, the mean and the Standard...
1.	Question: A consumer protection agency wants to study gas prices at gas stations in the state. It takes a sample of 50 gas stations. The sample mean is $2.35 with a standard deviation of $0.12. Construct a 99% confidence interval to estimate the population mean. 
2.	Question: A consumer protectio...
Preview 2 out of 5 pages
Add to cart1.	Question: A consumer protection agency wants to study gas prices at gas stations in the state. It takes a sample of 50 gas stations. The sample mean is $2.35 with a standard deviation of $0.12. Construct a 99% confidence interval to estimate the population mean. 
2.	Question: A consumer protectio...
Confidenceintervalsrepresenttherangeofuncertaintyassociatedwiththeestimation 
of a statistic (mean, proportion, or standard deviation, etc.). There is always a risk ofsampling error associated with an estimate. Confidence intervals are useful forestablishing bounds for estimating, in particular, the...
Preview 1 out of 1 pages
Add to cartConfidenceintervalsrepresenttherangeofuncertaintyassociatedwiththeestimation 
of a statistic (mean, proportion, or standard deviation, etc.). There is always a risk ofsampling error associated with an estimate. Confidence intervals are useful forestablishing bounds for estimating, in particular, the...
of a statistic (mean, proportion, or standard deviation, etc.). There is always a risk ofsampling error associated with an estimate. Confidence intervals are useful forestablishing bounds for estimating, in particular, the mean or standard deviation, butalso regression coefficients, proportions, fre...
Preview 4 out of 91 pages
Add to cartof a statistic (mean, proportion, or standard deviation, etc.). There is always a risk ofsampling error associated with an estimate. Confidence intervals are useful forestablishing bounds for estimating, in particular, the mean or standard deviation, butalso regression coefficients, proportions, fre...
1.	Question: A random sample of 100 selected from a population with a standard deviation of 10 yielded a mean = 225. The mean and the standard deviation of the distribution of the sample means are __________. 
2.	Question: Suppose a random sample of 49 is selected from a population of size N = 500 w...
Preview 2 out of 7 pages
Add to cart1.	Question: A random sample of 100 selected from a population with a standard deviation of 10 yielded a mean = 225. The mean and the standard deviation of the distribution of the sample means are __________. 
2.	Question: Suppose a random sample of 49 is selected from a population of size N = 500 w...
1.	Question: Suppose a random sample of 400 is selected from a population with a standard deviation of 5. If the sample mean is 25, the 98% confidence interval to estimate the population mean is between ________. 
2.	Question: The point estimate of the population mean is _________. 
3.	Question: Sup...
Preview 2 out of 8 pages
Add to cart1.	Question: Suppose a random sample of 400 is selected from a population with a standard deviation of 5. If the sample mean is 25, the 98% confidence interval to estimate the population mean is between ________. 
2.	Question: The point estimate of the population mean is _________. 
3.	Question: Sup...
1.	Question: Suppose a random sample of 400 is selected from a population with a standard deviation of 5. If the sample mean is 25, the 98% confidence interval to estimate the population mean is between ________. 
2.	Question: The point estimate of the population mean is _________. 
3.	Question: Sup...
Preview 4 out of 64 pages
Add to cart1.	Question: Suppose a random sample of 400 is selected from a population with a standard deviation of 5. If the sample mean is 25, the 98% confidence interval to estimate the population mean is between ________. 
2.	Question: The point estimate of the population mean is _________. 
3.	Question: Sup...
MATH 534 Week 5 Discussion; Hypothesis Testing
Preview 2 out of 5 pages
Add to cartMATH 534 Week 5 Discussion; Hypothesis Testing
For this discussion, create and post a 1-2 minute video describing a real-world example of whenahypothesistestcouldbeused.Yourvideoshouldalsoincludeanumericalexampleforanotherstudent to work through in their response. The example can use real data or data that you makeup, such as values for the mean...
Preview 4 out of 92 pages
Add to cartFor this discussion, create and post a 1-2 minute video describing a real-world example of whenahypothesistestcouldbeused.Yourvideoshouldalsoincludeanumericalexampleforanotherstudent to work through in their response. The example can use real data or data that you makeup, such as values for the mean...
MATH 534 Week 5 Discussion; Hypothesis Testing
Preview 1 out of 2 pages
Add to cartMATH 534 Week 5 Discussion; Hypothesis Testing
1.	Question: In hypothesis testing the statistical conclusion is either to reject or not to reject the null hypothesis based on the sample data. Which of the following statements is true? 
2.	Question: If a company wants to prove that the proportion (p) of its revenues from overseas operations is mo...
Preview 2 out of 5 pages
Add to cart1.	Question: In hypothesis testing the statistical conclusion is either to reject or not to reject the null hypothesis based on the sample data. Which of the following statements is true? 
2.	Question: If a company wants to prove that the proportion (p) of its revenues from overseas operations is mo...
1.	Question: In hypothesis testing the statistical conclusion is either to reject or not to reject the null hypothesis based on the sample data. Which of the following statements is true? 
2.	Question: If a company wants to prove that the proportion (p) of its revenues from overseas operations is mo...
Preview 1 out of 4 pages
Add to cart1.	Question: In hypothesis testing the statistical conclusion is either to reject or not to reject the null hypothesis based on the sample data. Which of the following statements is true? 
2.	Question: If a company wants to prove that the proportion (p) of its revenues from overseas operations is mo...
1.	Question: In a hypothesis test, the test statistic computed from the sample data is considered extreme or significant if it is __________ 
2.	Question: A test of the hypotheses, H0: p = 0.18 and H1: p ≠ 0.18 is a _______________. 
3.	Question: An analyst tested the null hypothesis µ ≥ 30 ag...
Preview 2 out of 6 pages
Add to cart1.	Question: In a hypothesis test, the test statistic computed from the sample data is considered extreme or significant if it is __________ 
2.	Question: A test of the hypotheses, H0: p = 0.18 and H1: p ≠ 0.18 is a _______________. 
3.	Question: An analyst tested the null hypothesis µ ≥ 30 ag...
1.	Question: In a hypothesis test, the test statistic computed from the sample data is considered extreme or significant if it is __________ 
2.	Question: A test of the hypotheses, H0: p = 0.18 and H1: p ≠ 0.18 is a _______________. 
3.	Question: An analyst tested the null hypothesis µ ≥ 30 ag...
Preview 2 out of 9 pages
Add to cart1.	Question: In a hypothesis test, the test statistic computed from the sample data is considered extreme or significant if it is __________ 
2.	Question: A test of the hypotheses, H0: p = 0.18 and H1: p ≠ 0.18 is a _______________. 
3.	Question: An analyst tested the null hypothesis µ ≥ 30 ag...
1.	Question: You can skip #16 in the homework and #9 and #10 in the quiz. Everyone will be given credit. The problems look something like this: 
2.	Question: Review definitions and concepts in the notes. 
3.	Question: We are developing a regression model to predict weight as function of height. 
a....
Preview 2 out of 6 pages
Add to cart1.	Question: You can skip #16 in the homework and #9 and #10 in the quiz. Everyone will be given credit. The problems look something like this: 
2.	Question: Review definitions and concepts in the notes. 
3.	Question: We are developing a regression model to predict weight as function of height. 
a....
Part B: Hypothesis Testing and ConfidenceIntervals	 
Completethefollowingfourhypotheses,usingα=0.05foreach.Theweek5spreadsheetcanbeusedintheseanalyses. 
 
▪	1.Meansalesperweekexceed42.5persalesperson 
▪	2.Proportionreceivingonlinetrainingislessthan 55% 
▪	3Meancallsmadeamongthosewithnotrainin...
Preview 1 out of 1 pages
Add to cartPart B: Hypothesis Testing and ConfidenceIntervals	 
Completethefollowingfourhypotheses,usingα=0.05foreach.Theweek5spreadsheetcanbeusedintheseanalyses. 
 
▪	1.Meansalesperweekexceed42.5persalesperson 
▪	2.Proportionreceivingonlinetrainingislessthan 55% 
▪	3Meancallsmadeamongthosewithnotrainin...
Here,wearetalkingaboutregressionanalysis.Regressionanalysisreferstoa 
statisticalmethodofmodelingtherelationshipsbetweendifferentvariables(dependentand independent). It is used to describe and analyze relationships between data. Also,the regression analysis is used to make predictions, the relations...
Preview 1 out of 3 pages
Add to cartHere,wearetalkingaboutregressionanalysis.Regressionanalysisreferstoa 
statisticalmethodofmodelingtherelationshipsbetweendifferentvariables(dependentand independent). It is used to describe and analyze relationships between data. Also,the regression analysis is used to make predictions, the relations...
Suppose you are given data from a survey showing the IQ of each person interviewed and the IQof his or her mother. That is all the information that you have. Your boss has asked you to puttogether a report showing the relationship between these two variables. What could you present,and why?
Preview 4 out of 59 pages
Add to cartSuppose you are given data from a survey showing the IQ of each person interviewed and the IQof his or her mother. That is all the information that you have. Your boss has asked you to puttogether a report showing the relationship between these two variables. What could you present,and why?
1.	Question: Which of the following is not an assumption of the regression model? 
2.	Question: Suppose for a given data set the regression equation is: y = 54.78 + 1.45x, and the point (0.00, 24.78) is in the data set. The residual for this point is _________. 
3.	Question: If the standard error of...
Preview 2 out of 5 pages
Add to cart1.	Question: Which of the following is not an assumption of the regression model? 
2.	Question: Suppose for a given data set the regression equation is: y = 54.78 + 1.45x, and the point (0.00, 24.78) is in the data set. The residual for this point is _________. 
3.	Question: If the standard error of...
1.	Question: Which of the following is not an assumption of the regression model? 
2.	Question: Suppose for a given data set the regression equation is: y = 54.78 + 1.45x, and the point (0.00, 24.78) is in the data set. The residual for this point is _________. 
3.	Question: If the standard error of...
Preview 2 out of 6 pages
Add to cart1.	Question: Which of the following is not an assumption of the regression model? 
2.	Question: Suppose for a given data set the regression equation is: y = 54.78 + 1.45x, and the point (0.00, 24.78) is in the data set. The residual for this point is _________. 
3.	Question: If the standard error of...
1.	Question: A value of -1 for the coefficient of correlation between two variables means that the two variables are _____________. 
2.	Question: If there is positive correlation between two sets of numbers, then ____________-. 
3.	Question: If the correlation coefficient between variables X and Y i...
Preview 2 out of 6 pages
Add to cart1.	Question: A value of -1 for the coefficient of correlation between two variables means that the two variables are _____________. 
2.	Question: If there is positive correlation between two sets of numbers, then ____________-. 
3.	Question: If the correlation coefficient between variables X and Y i...
1.	Question: A value of -1 for the coefficient of correlation between two variables means that the two variables are _____________. 
2.	Question: If there is positive correlation between two sets of numbers, then ____________-. 
3.	Question: If the correlation coefficient between variables X and Y i...
Preview 1 out of 3 pages
Add to cart1.	Question: A value of -1 for the coefficient of correlation between two variables means that the two variables are _____________. 
2.	Question: If there is positive correlation between two sets of numbers, then ____________-. 
3.	Question: If the correlation coefficient between variables X and Y i...
Final Project: Regression and Correlation Analysis 
Use the dependent variable (labeled Y) and one of the independent variables (labeled X1, X2, and X3) in the data file. Select and use one independent variable throughout this analysis. Use Excel to perform the regression and correlation analysis to...
Preview 1 out of 1 pages
Add to cartFinal Project: Regression and Correlation Analysis 
Use the dependent variable (labeled Y) and one of the independent variables (labeled X1, X2, and X3) in the data file. Select and use one independent variable throughout this analysis. Use Excel to perform the regression and correlation analysis to...
HelloProfessor&Class, 
Predictiveanalyticsisaninnovativeanalyticsdivisionthatuseshistoricaldatacombinedwith mathematical simulation, data mining techniques and machine learning to makeforecasts about future results.In order to detect threats and prospects, businessesemploy predictiveanalytics tofind...
Preview 1 out of 3 pages
Add to cartHelloProfessor&Class, 
Predictiveanalyticsisaninnovativeanalyticsdivisionthatuseshistoricaldatacombinedwith mathematical simulation, data mining techniques and machine learning to makeforecasts about future results.In order to detect threats and prospects, businessesemploy predictiveanalytics tofind...
Predictive analytics in business is an important application of multiple regression analysis.Generallyspeaking,whatismeantbypredictiveanalytics?Asabusinessowner,howcouldyouuseregressionanalysisand predictive analyticsto increase your company'ssales?
Preview 4 out of 71 pages
Add to cartPredictive analytics in business is an important application of multiple regression analysis.Generallyspeaking,whatismeantbypredictiveanalytics?Asabusinessowner,howcouldyouuseregressionanalysisand predictive analyticsto increase your company'ssales?
1.	Question:Arealestateanalysthasdevelopedamultipleregressionline,y=60+0.068x1–2.5x2,topredicty=themarketpriceofahome(in 
$1,000s),usingindependentvariables,x1=thetotalnumberofsquare feetoflivingspace,andx2=theageofthehouseinyears.The regressioncoefficientofx2suggeststhis: _____. 
2.	Question:Thef...
Preview 2 out of 5 pages
Add to cart1.	Question:Arealestateanalysthasdevelopedamultipleregressionline,y=60+0.068x1–2.5x2,topredicty=themarketpriceofahome(in 
$1,000s),usingindependentvariables,x1=thetotalnumberofsquare feetoflivingspace,andx2=theageofthehouseinyears.The regressioncoefficientofx2suggeststhis: _____. 
2.	Question:Thef...
The descriptive statistics summarize data from a sample, for example, demographicprofiles. Whenever there are several groups, it is useful to provide the descriptivestatistics by group and for the overall sample. This gives a visual impression of thecomparabilityofthe groupsin termoftheir baseline c...
Preview 1 out of 3 pages
Add to cartThe descriptive statistics summarize data from a sample, for example, demographicprofiles. Whenever there are several groups, it is useful to provide the descriptivestatistics by group and for the overall sample. This gives a visual impression of thecomparabilityofthe groupsin termoftheir baseline c...
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Stuvia is a marketplace, so you are not buying this document from us, but from seller AcademicResources. Stuvia facilitates payment to the seller.
No, you only buy these notes for $355.49. You're not tied to anything after your purchase.
4.6 stars on Google & Trustpilot (+1000 reviews)
83662 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now