Ehrd 391 - Study guides, Class notes & Summaries
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EHRD 391 Exam 1 Sandlin questions with correct answers|100% verified
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EHRD 391 Exam 1 Sandlin questions with correct answers 
Population Answer group of people that have at least 1 characteristic in common 
 
Sample Answer a subset of the population 
 
Statistic Answer summarized value of a sample 
 
Parameter Answer summarized value of a population 
 
descriptive statistics Answer organize and describe a collection of data 
 
inferential statistics Answer make generalizations
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EHRD 391-Test 1 questions with correct answers|100% verified
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EHRD 391-Test 1 questions with correct answers 
Statistics Answer A set of tools and techniques that are used for describing, organizing, and interpreting information or data 
-Making decisions with incomplete data 
 
Data Answer A RECORD of an observation/event such as a test score, grade in class, or response time 
 
Data Set Answer A COLLECTION of observations/events such as test scores, grades on a test, or response time 
 
Branches Of Statistics Answer --- 
 
Descriptive Statistics Answer U...
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EHRD 391 Exam 3 questions with correct answers
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Inferential Statistics 
(hypothesis testing) Answer -making decisions with incomplete data 
-notion of taking info from small groups to big ones 
 
population Answer a group of people who have 1 thing in common 
 
sample Answer a subset of the people 
 
sampling error Answer the inherent error that comes with samples 
 
Null hypothesis Answer -a statement of equality between two variables 
-considered the starting point 
-it is what we accept to be true, until we have evidence that says othersi...
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EHRD 391 Exam 2 questions with correct answers
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bivariate data Answer Data with two variables 
 
univariate data Answer data with one variable 
 
example of continuous variable Answer hrs studied and test score 
 
r Answer strength of associate between variables 
 
4 things that scatter plot tells you Answer -degree of association 
-directionality 
-linearity 
-outliar 
 
if outliar is encountered Answer -make sure is not an administrative error 
-caluculate with and without the association 
- check what is going on 
 
Pearson's r Answer te...
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EHRD 391 EXAM 2 questions with correct answers
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bivariate Answer 2 variables 
 
r Answer -Pearson r 
-tells you the degree of linear relationship between two continuous variables 
-has to be a meaningful relationship between the variables 
will be making scatter plots 
 
degree of association Answer what does the circle around the data look like? 
-tight circle=most related 
-loose circle=least related 
 
directionality Answer where it is moving 
+/- 
 
linearity Answer no curves or randomness 
 
presence of outliers Answer 1) make sure no ou...
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EHRD 391-Test 1 questions with correct answers
- Exam (elaborations) • 5 pages • 2023
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Statistics Answer A set of tools and techniques that are used for describing, organizing, and interpreting information or data 
-Making decisions with incomplete data 
 
Data Answer A RECORD of an observation/event such as a test score, grade in class, or response time 
 
Data Set Answer A COLLECTION of observations/events such as test scores, grades on a test, or response time 
 
Branches Of Statistics Answer --- 
 
Descriptive Statistics Answer Used to organize and describe the characteristics...
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EHRD 391 - Exam/Final, Sandlin questions with correct answers
- Exam (elaborations) • 5 pages • 2023
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Probability theory Answer analysis and understanding of chance occurrences 
 
Probability Answer specification of how frequently a particular event of interest is likely to occur over a large number of trials 
 
Standard Error of the Mean Answer the standard deviation of a sampling distribution 
 
Sampling Distribution of Means Answer when samples are taken and the means are calculated and graphed 
 
Central Limit Theorem Answer - sampling distribution of the means will be normal 
- mean of the ...
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EHRD 391 Exam 3... questions with correct answers
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The Null Hypothesis can be Answer Correct or Incorrect 
 
We fail to reject Ho when Answer Data is Correct or between Tc 
 
Step 1 Answer State Ho & Ha 
 
Step 2 Answer Select "Alpha" 
 
Alpha Answer Level of risk or level of significance 
 
Step 3 Answer Select Appropriate Test "Dependent or Independent" 
 
Step 4 Answer Compute T-o "Do the Math" 
 
Step 5 Answer Determine the value to reject the Null "T-c" t-critical 
 
How to solve "DF" = Degree of freedom For independent Answer n1 ...
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EHRD 391 Exam 1 Sandlin questions with correct answers
- Exam (elaborations) • 4 pages • 2023
- Available in package deal
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Population Answer group of people that have at least 1 characteristic in common 
 
Sample Answer a subset of the population 
 
Statistic Answer summarized value of a sample 
 
Parameter Answer summarized value of a population 
 
descriptive statistics Answer organize and describe a collection of data 
 
inferential statistics Answer make generalizations 
 
Percentiles Answer indicate the percentage of observations that fall at or below a specific value 
 
Quartiles Answer Points in the distribut...
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EHRD 391 CH 3, Questions and answers, 100% Accurate (Exam Review). VERIFIED.
- Exam (elaborations) • 3 pages • 2023
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EHRD 391 CH 3, Questions and answers, 100% Accurate (Exam Review). VERIFIED. 
 
 
Kurtosis - -What is the term associated with how flat or peaked a distribution appears? 
 
Maintain the scale in the graph - -which of the following are among the things to remember when creating figures? 
 
Skewness - -This is another word for "lopsidedness" of a distribution 
 
Frequency Distribution - -When tallying and representing how often certain scores occur, which type of data illustration method is bein...
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