Stats Review Chapter 9

A student randomly selects 10 paperback books at a store. The mean price is $8.75 with a standard deviation of $1.50. Construct a 95% confidence interval for the population standard deviation, σ. Interpret the confidence interval. Assume the data are normally distributed 1. Find 𝜒1−𝛼/2 2 and𝜒 𝛼/2 2 for 95% confidence level and df ... ................
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