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Mathematics, 10.03.2020 06:03 roderickhinton

A random variable x 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 n=36 and find a sample mean of ¯ x = 98 x¯=98 . What is a 95% confidence interval for the mean of x x ?

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A random variable x x has a Normal distribution with an unknown mean and a standard deviation of 12....
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