What advertising medium gives a brand the most credibility in influencing brand​ decisions? According to a​ survey, 41 % of Millennials point to TV. Complete parts​ (a) through​ (e).
a. To conduct a​ follow-up study that would provide 95​% confidence that the point estimate is correct to within plus or minus 0.04 of the population​ proportion, how large a sample size is​ required? A sample size of nothing people is required.
B. To conduct a​ follow-up study that would provide 99​% confidence that the point estimate is correct to within plus or minus0.04 of the population​ proportion, how many people need to be​ sampled?
C.To conduct a​ follow-up study that would provide 95​% confidence that the point estimate is correct to within plus or minus blank of the population​ proportion, how large a sample size is​ required?
D. To conduct a​ follow-up study that would provide 99​% confidence that the point estimate is correct to within plus or minus blank of the population​ proportion, how many people need to be​ sampled?
Discuss the effects of changing the desired confidence level and the acceptable sampling error on sample size requirements. Compare the sample sizes found in parts​ (a) through​ (d) to determine the effects of changing the desired confidence level and the acceptable sampling error on sample size requirements.