Statistics Summer XXXXXXXXXXTest 2 1. Forty nine men and sixty eight women listened and watched a speech on the environment in their undergraduate public speaking class. Each student rated the...

Statistics Summer 2 2011 Test 2
1. Forty nine men and sixty eight women listened and watched a speech on the environment in their undergraduate public speaking class. Each student rated the persuasiveness of the speaker on a scale from 5 (very persuasive) to 1 (not very persuasive). Is there any difference between male and female audience members' ratings on the persuasiveness of the speaker? The researcher did several calculations and found the following:
Men: n=49 2 = 2.68 SD = 1.11 Women n=49 2= 3.03 SD = 1.33 a. State the null and research hypothesis.
b. Set the level of risk c. Select the appropriate test
d. Compute the obtained value. e. Find the critical value
f. Compare the obtained value and the critical value.
State your decision.