Question

Question 7 of 1- 1 point) Attempt 1 of Unlimited View question in a popup 8.2 Section Exercise 35-38 = 30 versus H: <30. A sample of size n=45 is drawn, and x = 26. The population standard deviation A test is made of H, is 9. (a) Compute the value of the test statistic z. (b) is Ho rejected at the a0.05 level? (c) Is He rejected at the c = 0.01 level? Part: 0/3 Part 1 of 3 (a) Compute the value of the test statistic. Round the answer to at least two decimal places

Answer 1

& Solucation paye- given that nales : 26 5:9 A Test: - Ho ill= 30 js HuL30 E a a ] The value of the test statistic TE gru 1.34 A b TYY W Ang? i 5-7--2.98/ Z-.2.99 ] is to rejected seat the a=0:05 level. ? it is left tailed test. Critical value fou 2 = 0.05 Zasale 645 from a Normal table decision! . - Z < - Za if Reject to - 2.99 < -1.645 3 we Reject He

Page 2 6 ] is Ho rejected at the doo ol level3 à it is left-tailed testi Critical value fog a 20:01 zx 62.326€ from A Normal Aable decision?. Casa2 L-24 if Reject ho Pis -2.99 < -2.396 we Reject Hoi ;