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A psychologist wants to estimate the standard deviation of

A psychologist wants to estimate the standard deviation of IQ scores. It is widely believed that IQ scores follow a normal distribution. Her random sample of 28 IQ scores has a mean of 101 and a standard deviation of 14.7. Find the 95% confidence interval for the population standard deviation based on this sample. Then complete the table below.

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What are the lower and upper limit confidence intervals

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Basic Statistics: A psychologist wants to estimate the standard deviation of

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