A simple random sample of size 15 has mean x = 10.34 and standard deviation s =
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A simple random sample of size 15 has mean x̄ = 10.34 and standard deviation s = 3.48. The population is normally distributed. Construct a 95% confidence interval for the population standard deviation.
In Exercises 1–4, state which type of parameter is to be estimated, then construct the confidence interval.
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