Find the upper & lower confidence limit

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Reference no: EM1319819

Question: Fred’s Widget Company wants to make sure his widgets are within the weight tolerances he advertises on the radio. He says the weight of his widgets is fifteen pounds. He samples 49 of his widgets and finds the mean weight of the widgets to be 14.5 with a standard deviation of 1.2 pounds. Based on this information, construct the 95 percent confidence interval for the sample.

Question1: Find the upper confidence limit?
Question2: Find the lower confidence limit?

Reference no: EM1319819

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