(Solved): Standard Normal Distribution table Standard Normal Distribution table A television sports comme ...

A television sports commentator wants to estimate the proportion of citizens who "follow professional football." Complete parts (a) through (c). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What sample size should be obtained if he wants to be within 2 percentage points with \( 94 \% \) confidence if he uses an estimate of \( 48 \% \) obtained from a poll? The sample size is (Round up to the nearest integer.) (b) What sample size should be obtained if he wants to be within 2 percentage points with \( 94 \% \) confidence if he does not use any prior estimates? The sample size is (Round up to the nearest integer.) (c) Why are the results from parts (a) and (b) so close? A. The results are close because \( 0.48(1-0.48)=0.2496 \) is very close to \( 0.25 \). B. The results are close because the confidence \( 94 \% \) is close to \( 100 \% \). c. The results are close because the margin of error \( 2 \% \) is less than \( 5 \% \).