Bernie the Gambler reviews the number of bets he has won in his lifetime of gambling. Since he has made so many bets, he selects a random sample of 100 games and records the number of wins he has made. He sees that he has made 42 wins out of the 100 in his sample. a) Calculate the point estimate for Bernie's sample.
b) Compute the margin of error for Bernie's winning bets given a confidence level of 99%. (Use a table or technology.