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QUESTION 6 The dean of a college wants to use the mean of a random sample to estimate the average amount of time student
Posted: Sun Jul 10, 2022 10:16 am
by answerhappygod
- Question 6 The Dean Of A College Wants To Use The Mean Of A Random Sample To Estimate The Average Amount Of Time Student 1 (17.17 KiB) Viewed 64 times
QUESTION 6 The dean of a college wants to use the mean of a random sample to estimate the average amount of time students take to get from one class to the next, and he wants to be able to assert with 99% confidence that the error is at most 0.25 minute. If it can be presumed from past experience that the population standard deviation is 1.40 minutes, how large a sample will she has to take at least? [a]