QMB 3200 Final EXAM BUNDLED(COMPLETE PACKAGE)Questions & Answers 100% Correct!

One-tailed tests - ANSWERSA hypothesis test in which rejection of the null hypothesis occurs for values of the test statistic in one tail of its sampling distribution. null hypothesis - ANSWERSThe hypothesis tentatively assumed true in the hypothesis testing procedure. alternative hypothesis -...

Excel's ______ function can be used to compute the sample standard deviation - ANSWERSSTDEV.S The mean of the sample is - ANSWERScomputed by summing all the data values and dividing the sum by the number of items symbol that represents the size of population - ANSWERSN The variance of a sa...

What is the z score formula? - ANSWERS(the observation - mean) / standard deviation What does a z score tell us? - ANSWERShow many standard deviations a value of from the mean How do you find the range? - ANSWERSbiggest value minus smallest value What is the formula used in excel to find th...

Confidence interval interpretation - ANSWERSwe are 95% confident that the mean y, with _________, falls between (upper value) and (lower value) A confidence interval interpretation applies to the - ANSWERSmean of all units slope interpretation - ANSWERSfor every 1 unit increase in x1, y will e...

A graph of the standardized residuals plotted against values of the normal scores that helps to determine whether the assumption that the error term has a normal probability distribution appears to be valid is called a: - ANSWERSnormal probability plot The tests of significance in regression anal...

A graph of the standardized residuals plotted against values of the normal scores that helps to determine whether the assumption that the error term has a normal probability distribution appears to be valid is called a: - ANSWERSnormal probability plot The tests of significance in regression anal...

In hypothesis testing, the tentative assumption about the population parameter is called - ANSWERSthe null hypothesis A fast food restaurant has automatic drink dispensers to help fill orders more quickly. When the 12 ounce button is pressed, they would like for exactly 12 ounces of beverage to b...

The central limit theorem is important in Statistics because it - ANSWERSenables reasonably accurate probabilities to be determined for events involving the sample average when the sample size is large regardless of the distribution of the variable. The fact that the sampling distribution of samp...

Describes a model with a few number of terms - ANSWERSParsimonious model True slope of line in simple linear regression - ANSWERSBeta1 A large sample - ANSWERSN greater than 30 # of dumy variables required to represent a QL var at 3 levels - ANSWERS2 Computer software used to generate yo...

Which of the following statements regarding a time series technique is true? - ANSWERSTime series techniques focus on the historical behavior of some outcome of interest to predict its future behavior. Which time series technique predicts a future value by combining the previous prediction and so...

population - ANSWERSall possible subjects of interest sample - ANSWERSsubset of a population parameters - ANSWERSvalues describing population statistic - ANSWERSvalues describing sample sampling distribution - ANSWERSdistribution patter that averages or proportions follow when samples ar...

Whenever the population standard deviation is unknown and the population has a normal or near-normal distribution, which distribution is used in developing an interval estimation? - ANSWERSt-distribution If a hypothesis is not rejected at the 5% level of significance, it - ANSWERSwill also not be...

Class Width - ANSWERS=(Max - Min)/5 Quartile 1 - ANSWERS=QUARTILE.EXC (data, 1) ← 25% percentile Quartile 3 - ANSWERS=QUARTILE.EXC (data, 3) ← 75% percentile Percentile - ANSWERS=PERCENTILE.INC(data, %) Mean - ANSWERS=AVERAGE(data) Median - ANSWERS=MEDIAN(data) Mode - ANSWERS=M...

The variable selection procedure that identifies the best regression equation, given a specified number of independent variables, is: - ANSWERSbest-subsets regression. The mathematical equation that explains how the dependent variable y is related to several independent variables and has the form...