A quality characteristic of interest for a teabag filling process is the weight of the tea in
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5.65 5.445.425.405.535.34 5.54 5.45 5.52 5.41
5.57 5.405.535.545.555.62 5.56 5.46 5.44 5.51
5.47 5.405.475.615.535.32 5.67 5.29 5.49 5.55
5.77 5.575.425.585.585.50 5.32 5.50 5.53 5.58
5.61 5.455.445.255.565.63 5.50 5.57 5.67 5.36
a. Construct a 99% confidence interval estimate for the population mean weight of the tea bags.
b. Is the company meeting the requirement set forth on the label that the mean amount of tea in a bag is 5.5 grams?
c. Do you think the assumption needed to construct the confidence interval estimate in (a) is valid?
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Related Book For
Statistics For Managers Using Microsoft Excel
ISBN: 772
7th Edition
Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat
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