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Question 32The test statistic used to compare the variances of two populations will always be greater than 1.0CommentsCorrect!!Max Score: 4
Actual Score: 4Question 33A 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. The correct hypothesis statement would be ________.Max Score: 4Actual Score: 0Question 34Costco sells paperback books in their retail stores and wanted to examine the relationship between price and demand. The priceof a particular novel was adjusted each week, and the weekly sales were recorded in the table below. Management would like to use simple regression analysis to estimate weekly demand for this novel using the price of the novel. The 95% prediction interval that estimates the weekly sales for a price of $9 is ________.Max Score: 4Actual Score: 0Question 35The ________ measures the variation in the dependent variable that is explained by variables other than the independent variable in simple regression analysis.
Max Score: 4Actual Score: 0Question 36The table below shows the number of cars sold last month by six employees at Concord Motors and each employee's number ofyears of sales experience. The correlation coefficient for this data is ________.CommentsCorrect!!Max Score: 4Actual Score: 4Question 37A correlation coefficient of -0.80 indicates a weak negative relationship between two variablesMax Score: 4Actual Score: 0