Question: Travel and Transportation To advertise appropriate vacation packages, Best Bets Travel would like to learn more about families planning overseas trips. In a random sample of 125 families planning a trip to Europe, 15 indicated France as their travel destination.
a. For those families planning vacations to Europe, find a 98% confidence interval for the true proportion traveling to France.
b. Suppose no prior estimate of p^ is known. How large a sample is necessary for the bound on the error of estimation to be 0.05 with the confidence level in part (a)?