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A random variable x has a Normal distribution with an unknown mean and a standard deviation of 12. Suppose that we take a random sample
A random variable x has a Normal distribution with an unknown mean and a standard deviation of 12. Suppose that we take a random sample of size n = 36 and find a sample mean of x = 98. What is a 95% confidence interval for the mean of Macmillan Learning x ? O (74.48, 121.52) O (94.08, 101.92) O (96.355, 99.645) O (97.347, 98.653)
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Linear Algebra With Applications
Authors: W. Keith Nicholson
7th Edition
978-0070985100, 70985103
