# Question: The Chapter Problem for Chapter 3 includes the numbers of

The Chapter Problem for Chapter 3 includes the numbers of chocolate chips in a sample of 40 Chips Ahoy regular cookies. The mean is 23.95 and the standard deviation is 2.55. Construct a 90% confidence interval estimate of the standard deviation of the numbers of chocolate chips in all such cookies. Assume that each sample is a simple random sample obtained from a population with a normal distribution.

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