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Data Mining and Weighing Onion Bags

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A packaging machine is used to put onions into 5-pound bags. In fact the weights vary according to the normal distribution with expected value of average µ = 5.01 lb and standard deviation s = 0.05 lb. Assume that 95% of bags with weight closest to µ is considered as normal. What would be the weight range of normal onion bags? Is an individual bag of 4.90 lb normal?

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Solution Summary

The solution gives detailed steps on building a confidence interval for normal onion bags. All formula and calculations are shown and explained.

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