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Mathematics, 04.12.2019 05:31 genyjoannerubiera
Arandom 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 n=36 and find a sample mean of ¯ x = 98 x¯=98 . what is a 95% confidence interval for the mean of x ?
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