The Star Tribune newspaper has decided

The Star Tribune newspaper has decided

The Star Tribune newspaper has decided to write an article about gasoline prices in the Twin Cities area (Minneapolis and St. Paul). The Star Tribune has designed a survey and taken a simple random sample of regular unleaded gas prices at 70 area stations. The Star Tribune’s policy is that no data will be reported unless they are 95 percent confident that the numbers are correct. As the new manager of the data collection verification unit at the Star Tribune, you need to develop a 95 percent confidence interval for the average price of regular unleaded gasoline in the Twin Cities metro area.

The Star Tribune newspaper has decided

You already know how to compute sample parameters like the sample mean and sample deviation; this scenario simply asks you to complete a confidence interval for the data provided above and communicate the results to the Star Tribune’s business manager.

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