Question: Question 4 options: Forty packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 24.1 pounds and

Question 4 options:

Forty packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 24.1 pounds and a standard deviation of 2.9 pounds. What is the 95% confidence interval for the true mean weight,, of all packages received by the parcel service?

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