Suppose candidate A is favored over candidate B by 52 to 48

Suppose candidate A is favored over candidate B by 52% to 48%. A random sample of voters is selected.

A. Determine the minimum sample size needed to insure the probability of an erroneous result would be less than 5%.

B. Determine the minimum sample size needed to insure the probability of an erroneous result would be less than 2%.

You should use Excel and PHstat to perform your analysis. You must completely explain and clearly interpret your analysis, including any computer output that you produce to assist your analysis.

Solution