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QMB 3200 FINAL EXAM WITH COMPLETE QUESTIONS AND ANSWERS

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QMB 3200 FINAL EXAM WITH COMPLETE QUESTIONS AND ANSWERSQMB 3200 FINAL EXAM WITH COMPLETE QUESTIONS AND ANSWERSQMB 3200 FINAL EXAM WITH COMPLETE QUESTIONS AND ANSWERS If the confidence interval for the regression slope includes zero, we would have some evidence that beta could be equal to zero, wh...

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  • November 5, 2024
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  • qmb 3200 final exam
  • QMB 3200
  • QMB 3200
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QMB 3200 FINAL EXAM WITH
COMPLETE QUESTIONS AND
ANSWERS
If the confidence interval for the regression slope includes zero, we would have some
evidence that beta
could be equal to zero, which would indicate that there may not be a relationship
between the dependent and independent variables. - ANSWER-True

A professor would like to test the hypothesis that the average number of minutes that a
student needs to complete a statistics exam has a standard deviation that is less than
5.0 minutes. Which of the following would be the correct hypothesis statement? -
ANSWER-H0: sigma squared greater than or equal to 25
H1: sigma squared less than 25

A coefficient of determination equal to zero indicates that there is no relationship
between the independent and dependent variables. - ANSWER-True

A dependent variable, x, explains the variation in another variable, which is called the
independent variable, y. - ANSWER-False

An assumption of regression analysis is that the relationship between the independent
and dependent variables is linear. - ANSWER-True

A relationship is linear if the scatter plot of the independent and dependent variables
has a straight-line pattern. - ANSWER-True

With one-way ANOVA, there will be a greater chance of rejecting the null hypothesis
when more variation in the data is due to the SSB rather than the SSW. - ANSWER-
True

Two-way ANOVA incorporates a blocking factor to account for variation outside of the
main factor in the hopes of increasing the likelihood of detecting a variation due to the
main factor. - ANSWER-False

The ________ measures how consistent the slope of the regression equation would be
if several sets of samples from the population were selected and the regression
equation were derived for each of them. - ANSWER-standard error of the slope

A software company would like to test if the standard deviation for the age of "gamers"
(those that routinely play video games) is equal to 6.0 years. Which of the following
would be the correct hypothesis statement? - ANSWER-H0: sigma squared equals 36.0

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