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Question 3 Find the F-test statistic to test the claim that the population variances are equal. Both distributions are normal. The standard deviation of the first sample is 1.9836 3.4653 is the standard deviation of the second sample. Submit Question Question 4 0/1 pt 299 Details 2 Ho: 0,2, ₁² = 0; 02 HA: 0₁²0₂2 Jump to Answer A company is doing a hypothesis test on the variation of quality from two suppliers. Both distributions are normal, and the populations are independent. use a = 0.01 The test statistic is = 0/1 pt 299 Details The standard deviation of the first sample is 3.1372 2.9902 is the standard deviation of the second sample. Fail to reject the null hypothesis Reject the null hypothesis
Is the variance for the amount of money, in dollars, that shoppers spend on Saturdays at the mall the same as the variance for the amount of money that shoppers spend on Sundays at the mall? Suppose that the tables below show the results of a study: Saturday: 40.1 58 112.8 108.1 76.6 51.8 84.6 70.7 54.5 60.5 59.1 (Note: The average and the standard deviation of the data are respectively 70.62 dollars and 23.141 dollars.) Sunday: 108.2 90.9 85.9 73.7 88.7 67.7 55.7 120 93.6 81.1 94 48.4 112.6 84 (Note: The average and the standard deviation of the data are respectively 86.04 dollars and 20.297 dollars.) Use a 5% significance level to test the claim that the standard deviation for the amount of money that shoppers spend on Saturday is greater than the standard deviation for the amount of money that shoppers spend on Sunday. If normality plots are not provided assume that the samples are from normal populations. Procedure: Select an answer Assumptions: (select everything that applies) O Paired samples Independent samples Population standard deviation are unknown Sample sizes are both greater than 30 Population standard deviation are unknown but assumed equal O Normal populations Population standard deviations are known