Question: i need help with his m: (10 points) You have been hired by a college foundation to conduct a survey of graduates. a) If you

i need help with his

m: (10 points) You have been hired by a college foundation to conduct a survey of graduates. a) If you want to estimate the percentage of graduates who made a donation to the college after graduation, how many graduates must you survey if you want 99% confidence that your percentage has a margin of error of 5 percentage point? b) If you want to estimate the mean amount of charitable contributions made by graduates, how may graduates must you survey if you want 99% confidence that your sample mean is in error by no more than $50? (Based on result from a pilot study, assume that the standard deviation of donations by graduates is $337.)

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