Consider (Test A - Test B). Use a 0.05 significance level to test the claim that

Question

Consider (Test A - Test B). Use a 0.05 significance level to test the claim that people do better on the second test than they do on the first. (Note: You may wish to use software.) (a) What test method should be used?

A. Matched Pairs

B. Two Sample z

C. Two Sample t

(b) The test statistic is

(c) The critical value is

(d) Is there sufficient evidence to support the claim that people do better on the second test?

A. No

B. Yes

2. Construct a 95% confidence interval for the mean of the differences. Again, use (Test A - Test B). <<

Explanation / Answer

To test the claim that people do better on the second test than they do on the first use a A. Matched Pairs t test as the samples are paired in some way.

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