Suppose that a random sample of 39 observations is selected from a normally distributed population with the standard dev

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answerhappygod
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Suppose that a random sample of 39 observations is selected from a normally distributed population with the standard dev

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Suppose that a random sample of 39 observations is selected from
a normally distributed population with the standard deviation of
26.548. The sample mean is calculated as 157.89. Obtain 95%
confidence interval for the population mean. What are the lower and
upper confidence limits, respectively?
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