13. (6 points) Sports Illustrated asked a random sample of Division I college athletes, "Do you believe performance-enhancing drugs are a problem in college sports?" 36% of the sample said "yes." If Sports Illustrated wishes to estimate the true proportion concerned about drug use in athletes within 2% with 98% confidence, how many people will they have to interview?

14. (15 points - 3 points each) A researcher has estimated that at most 49% of American adults skip breakfast on weekdays. In a random sample of 280 American adults, 154 said they skip breakfast on weekdays. Is there sufficient evidence to show that more than 49% of American adults skip breakfast on weekdays? Use a 0.05 level of significance.

I. Set up Hypotheses

II. Calculate the test statistic

III. Calculate the p-value

IV. Make a Statistical Decision (Reject or Do not reject H0)

V. Make a Conclusion

can you show me how to do it :)