How large a sample would be required in order for the 99


1. A production process fils containers by weight. Weights of containers are approximately normally distributed. Historically, the standard deviation of weights is 5.5 ounces. (This standard deviation is therefore known.) How large a sample would be required in order for the 99% confidence interval to have a length of 2 ounces? 

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Managerial Economics: How large a sample would be required in order for the 99
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