Dottie's Tax Service specializes in federal tax returns for professional clients, such as physicians, dentists, accountants, and lawyers. A recent audit by the IRS of the returns she prepared indicated that an error was made on 7 percent of the returns she prepared last year. Assuming this rate continues into this year and she prepares 80 returns. What is the probability that she makes errors on:

(a)	More than 6 returns? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

Probability

(b)	At least 6 returns? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

Probability

(c)	Exactly 6 returns? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

Probability