Question: 32 packages are randomly selected from packages received by a parcel service. The sample has a 9) mean weight of 14.5 pounds with = 2.1

32 packages are randomly selected from packages received by a parcel service. The sample has a 9) mean weight of 14.5 pounds with = 2.1 pounds. What is the 95 percent confidence interval for the true mean weight, , of all packages received by the parcel service?

A) 13.5 < < 15.5 B) 13.9 < < 15.1 C) 13.8 < < 15.2 D) 13.6 < < 15.4

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