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
25
IQ scores has a mean of
99
and a standard deviation of
13.2
. Find the
99%
confidence interval for the population standard deviation based on this sample. Then complete the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places. (If necessary, consult a list of formulas.)

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