Answer a all question start with pages no (129 ,130)

9.2 to 9.3 all questions you see in below

9.1

Lab Assignment Name: Sections 9.2-9.3 Due Date: Math 34 This Lab is to be worked in the Math Lab when an instructor is present. You may work with your classmates, but be sure to complete your own assignment to turn in. To receive credit for this assignment you must log in at least 2 hours each week. Section 9.2 In Exercises 5-20, assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Do the following: a. Test the given claim using the P-value method or critical value method. b. Construct a confidence interval suitable for testing the given claim. 8. Do Men Talk Less Than Women? The accompanying table gives results from a study of the words spoken in a day by men and women, and the original data are in Data Set 17 in Appendix B (based on "Are Women Really More Talkative Than Men?" by Mehl, et al., Science, Vol. 317, No. 5834). Use a 0.01 significance level to test the claim that the mean number of words spoken in a day by men is less than that for women. Table for Exercise 8 Men Women 01 = 186 02 = 210 X1 = 15,668.5 X2 = 16,215.0 S1 = 8632.5 $2 = 7301.2 12. Flight Arrival Delays Data Set 15 in Appendix B lists arrival delay times (min) for randomly selected flights from New York (JFK) to Los Angeles (LAX). Statistics for times are given below. Use a 0.05 significance level to test the claim that Flight 1 and Flight 3 have the same mean arrival delay time. Flight 1 n = 12, x = -20.5 min, s = 12.38401 min Flight 3 n = 12, x = -15.08333 min, s = 15.62317 min