My Math Forum Confidence interval word problem help

 July 2nd, 2016, 03:30 AM #1 Newbie   Joined: Jul 2016 From: maryland Posts: 1 Thanks: 0 Confidence interval word problem help Confidece interval question I have 2 statistics questions that I do not understand fully, can anyone solve these and explain the process for retrieving the answer? Thanks!! A Survey Of 47 mernbers Of a health club reported that prefer walking Or running On a treadmill to any other type of aerobic excrcise. Construct and interprct a 99% confidence interval for the percentage of health club who prefer walking/running on a treadmill. 99% - CI Interpretation: Suppose we want to estimate to within $1000 the mean salary of all college graduates who were business majors. How many business majors would we sample to estimate the mean salary to within$1000 with 95% confidence, if the standard deviation= 15, 000?

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