Question

9. Referring to question 8, If the alternative is directional and the test statistic Ws-41 what is the conclusion at the 5% level of significance? Reject the alternative hypothesis b. a. Fail to reject the alternative hypothesis Reject the null hypothesis d. c. Fail to reject the null hypothesis 10. In a hunger test nine women were rated using the drug CPP and a placebo. Ea of the women were tested for two weeks with the drug and then with the plac A summary of that data is shown below. The readings are dependent. Drug Placebo 84.9 34.1 Difference -29.6 32.8 Mean 55.3 S.D. 31.5 For this data using the proper test, the standard error is: a. 10.5 c. 10.9 15.47 11. In question 10 the appropriate test is The Wilcoxon Mann Whitney c. The Chi Square d. The Wilcoxson sign test 12. When finding a Confidence Interval Estimate, an increase in sample size wil the following effect: It will decrease the margin of error of the estimate It will increase the margin of error of the estimate It does not affect the margin of error but it increases the standard error It does not affect the margin of error but it increases the bias a. b. c. d.

Answer 1

Rej ect the null hypothesis standard eror: The t-test 32.8 S d こ10-3 Ng (2) It ω,11 decrea se +he mdrgin of error of the estimate