Question: 41packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 23.1 pounds. Assume that =3.7 pounds. What
41packages are randomly selected from packages received by a parcel service. The sample has a mean weight of
23.1
pounds. Assume that
=3.7
pounds. What is the
95%
confidence interval for the true mean weight,
, of all packages received by the parcel service?
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