Question: Consider a scenario where you have two samples. Sample 1 contains 50 observations, has the sample average value of 38 and the sample standard deviation

Consider a scenario where you have two samples. Sample 1 contains 50 observations, has the sample average value of 38 and the sample standard deviation of 2.5. Sample 2 contains 50 observations, has the sample average of 39 and the sample standard deviation of 2.0. Based on this information, please conduct a 90% significance test for the equality of the two population variances. Fail to reject the null that the two sigmas are equal Reject the null that the two sigmas are equal none of the above Consider a scenario in which we decide to compare the price of our textbook on eBay versus in the University bookstore. For that purpose, we collect 8 observations of sold used copies of the book on eBay. The average price on eBay is $60. We also compute the sample standard deviation of $20. The price at the University bookstore is $75 for a used copy. Please construct a 95% significance test for the hypothesis that the average price of the used book on eBay is LESS THAN OR EQUAL TO $75 and state the results of the test here. The test fails to reject the null that the price on eBay is less than or equal to $75 The test rejects the null that the price on eBay is less than or equal to $75 Not enough information to construct such a test Which of the following tests will reject the null hypothesis that the two samples come from populations with equal variances? Sample 1: the mean value is 50, the standard deviation is 10, the sample size is 20 Sample 2: the mean value is 60, the standard deviation is 15, the sample size is 25 99% confidence test 98% confidence test 95% confidence test thing None of the above

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