Construct a 90% confidence interval for the population mean weight of bags of potato chips. Round the answers to at least two decimal places, The 90% confidence interval is OD

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 mean weight 7.82 ounces with a sample standard deviation of 0.013 ounce. Assume the weights are approximately normally
distributed.
Construct a 90% confidence interval for the population mean weight of bags of potato chips. Round the answers to at least two decimal places.
The 90% confidence interval is
Transcribed Image Text: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 mean weight 7.82 ounces with a sample standard deviation of 0.013 ounce. Assume the weights are approximately normally distributed. Construct a 90% confidence interval for the population mean weight of bags of potato chips. Round the answers to at least two decimal places. The 90% confidence interval is
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