Question
(b) (i) The result of a fitness trial is a random variable X which is normally distributed with mean and standard deviation 2.4 . A
(b) (i) The result of a fitness trial is a random variable X which is normally distributed with mean and standard deviation 2.4 . A researcher uses the results from a random sample of 90 trials to calculate a
98% confidence interval for . What is the width of this interval?
[4]
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Elementary Algebra
Authors: Tom Carson, Bill E Jordan
4th Edition
0321916042, 9780321916044
