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3minis @ 5?? Denise is a professional swimmer who trains, in part, by running. She would like to estimate the average number of miles she runs in each week. For a random sample of 20 weeks, the mean is 2217.5 miles with standard deviation 523.8 miles. Find a 9996 oondenoe interval for the population mean number of weekly miles Denise runs. 15.31 to 19.69 miles 1534 to 19.66 miles 15.08 to 19.92 miles 15.01 to 19.99 miles 15.0? to 19.93 miles Previous Next 3 3 points Sixty-one students were asked at random how much they spent for classroom textbooks this semester. The sample standard deviation was found to be s=$28.70. How many more students should be included in the sample to be 99% sure that the sample mean x is within $7 of the population mean u for all students at this college? Take note of the number of sample size given. Type your answer.. Previous Next