Question: We did not know the sample size. Refer to the previous two exercises. We did not report the sample size for the 2000 study, but

We did not know the sample size. Refer to the previous two exercises. We did not report the sample size for the 2000 study, but it is reasonable to assume that it is fairly close to the sample size for the 2004 study.

(a) Suppose that the sample size for the 2000 study was only 1000. Redo the confidence interval and significance testing calculations for this scenario.

(b) Suppose that the sample size for the 2000 study was 2000.

Redo the confidence interval and significance testing calculations for this scenario.

(c) Compare your results for parts

(a) and

(b) of this exercise with the results that you found in the previous two exercises.

Write a short paragraph about the effects of assuming a value for the sample size on your conclusions.

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