# Question

Herr Foods, a producer of a variety of salty snacks, would like to estimate the average weight of a bag of BBQ potato chips produced during the filling process at its Nottingham, Pennsylvania, plant. Determine the sample size needed to construct a 95% confidence interval with a margin of error equal to 0.005 ounces. Assume the standard deviation for the potato chip filling process is 0.02 ounces. Verify your result using PHStat.

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