# The test statistic used to compare the variances of

• Test Prep
• BarbaraT36
• 13
• 88% (24) 21 out of 24 people found this document helpful

This preview shows page 9 - 13 out of 13 pages.

Question 28The test statistic used to compare the variances of two populations will always be greater than 1.0
CommentsCorrect!!Max Score: 4Actual Score: 4Question 29YouTube would like to test the hypothesis that the standard deviation for the length of an online video watched was selected. The sample standard deviation for the length of the video was found to be 2.5 minutes. The test stAnswerCommentsQuestion 30A professor would like to test the hypothesis that the average number of minutes that a student needs to comple15 students was selected, and the sample standard deviation for the time needed to complete the exam was founbecause the test statistic is
CommentsCorrect!!Max Score: 4Actual Score: 4Question 31A professor would like to test the hypothesis that the average number of minutes that a student needs to comple
hypothesis statement would be ________.
CommentsCorrect!!Max Score: 4Actual Score: 4Question 32A professor would like to test the hypothesis that the average number of minutes that a student needs to comple15 students was selected, and the sample standard deviation for the time needed to complete the exam was foun________.AnswerCommentsQuestion 33The ________ is used to test the significance of the population correlation coefficient.
CommentsCorrect!!Max Score: 4Actual Score: 4Question 34Costco sells paperback books in their retail stores and wanted to examine the relationship between price and derecorded in the table below.
Management would like to use simple regression analysis to estimate weekly demand for this novel using the pis ________.AnswerCommentsQuestion 35Costco sells paperback books in their retail stores and wanted to examine the relationship between price and derecorded in the table below.Which of the following statements describes the results of a hypothesis test that the population correlation coeff
Max Score: 4
Actual Score: 0Question 36Consider the relationship between the following variables: ∙ Monthly electricity bill for a household during the temperature during the summer months would be considered the dependent variableAnswerCommentsQuestion 37The table below shows the number of cars sold last month by six employees at Concord Motors and each emploThe correlation coefficient for this data is ________.
CommentsCorrect!!Max Score: 4Actual Score: 4Question 38The formula for the equation describing a straight line is = a + bx. The value for b in this equation represents th
CommentsCorrect!!Max Score: 4Actual Score: 4Question 39A correlation coefficient of -0.80 indicates a weak negative relationship between two variablesAnswerFalseCommentsCorrect!!Max Score: 4Actual Score: 4Question 40The closer the residuals are to zero, the better the fit of the regression model
• • • 