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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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A potato chip company wants to evaluate the accuracy of its potato chip bag filling machine. Bags
are labeled as containing 8 ounces of potato chips. A simple random sample of 12 bags had a
mean weight of 8.12 ounces with a sample standard deviation of 0.1 ounce. Assume the weights
are approximately normally distributed. Construct a 99% confidence interval for the population
mean weight of bags of potato chips.
Answer: 8.03 < µ< 8.21

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