Spuds-R-Us makes potato chips. A typical size is the 16-ounce bag of chips. A paid sampler went to various stores and picked bags of chips packaged on various days. She got 76 bags of chips. The average weight of the bags is 15.85 ounces with a standard deviation of 1.2 ounces. a) Is there evidence the company is under filling the bags of chips? State the null and alternative hypothesis. Give the test statistic and the p-value. What is your decision at the significance level 5%? Write a conclusion. b) Construct and Interpret an 95% confidence interval for the average weight of bags.
Spuds-R-Us makes potato chips. A typical size is the 16-ounce bag of chips. A paid sampler went to various stores and picked bags of chips packaged on various days. She got 76 bags of chips. The average weight of the bags is 15.85 ounces with a standard deviation of 1.2 ounces. a) Is there evidence the company is under filling the bags of chips? State the null and alternative hypothesis. Give the test statistic and the p-value. What is your decision at the significance level 5%? Write a conclusion. b) Construct and Interpret an 95% confidence interval for the average weight of bags.
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
ChapterP: Prologue: Calculator Arithmetic
Section: Chapter Questions
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Spuds-R-Us makes potato chips. A typical size is the 16-ounce bag of chips. A paid
sampler went to various stores and picked bags of chips packaged on various days. She
got 76 bags of chips. The average weight of the bags is 15.85 ounces with a standard
deviation of 1.2 ounces.
a) Is there evidence the company is under filling the bags of chips? State the null and alternative
hypothesis. Give the test statistic and the p-value. What is your decision at the significance level
5%? Write a conclusion.
b) Construct and Interpret an 95% confidence interval for the average weight of bags.
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