1. The Excel file Restaurant Sales provides sample information on lunch, dinner,

1. The Excel file Restaurant Sales provides sample information on lunch, dinner, and delivery sales for a local Italian restaurant. Develop 95% confidence intervals for the mean of each of these variables, as well as for weekday and weekend sales. What conclusions can you reach? 2. The Excel file Golfing Statistics provides data on the driving accuracy of 25 contestants. Develop a 90% confidence interval for driving accuracy.

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