15. Is the population standard deviation given? A. Yes B. No C. Maybe D. Cannot be determined 16. What is the applicable statistical test? A. Z-test B. H -test C. t-test D. U . test 17. What is the applicable statistical test for the following given: hypothesis test on population mean; n = 200; 0 = 1.37 A. Z-test B. H -test C. C-test D. U - test 18. What is the applicable statistical test for the following given: hypothesis test on population mean; n = 16;s = 2.7? A Z-test B. H -test C. f-test D. U - test For no. 19-20 The SSG president claims that the average number of hours the students study their lessons is more than 30 hours per week. If 30 students are surveyed and their average is 32 hours per week with standard deviation of 4 hours, is there sufficient evidence to reject the SSG president's claim at the ( =0.01 level of significance? 19. What type of test is applicable to the problem? A. Cannot be determined C. No-tailed Test B. One-tailed Test D. Two-tailed Test 20. Which of the following rejection region is applicable to the problem? AZ >-2.33 C. Z > 2.33 B. Z 2.575 C. 2 1.96 B.Z -2.575 D. Z -1.96 22. Which of the following is the appropriate rejection region for the following given: hypothesis test on population mean; ( = 0.01; one-tailed test (left); 1 = 73;s = 8.2 A. Z > 1.645 C. z > 2.33 B. Z > 24. Calculate the t-value given the following: hypothesis test on population mean; x = 33; p = 35; s =5; n = 25. A. 2 C .2 B. 0.18 D. -0.18 25. If Ha H-5.2; H, H> 5.2; 30 B. Ho /! = 30 D. Ha # 30