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The Excel file labeled Lowes xlsx lists the receipt total for

The Excel file labeled Lowes.xlsx lists the receipt total for 350 randomly selected customers for the home improvement chain Lowe’s.

a. Use these data to construct a 95% confidence interval to estimate the average receipt total for a Lowe’s customer.

b. What is the margin of error for this sample?

c. Verify your results using Excel.

a. Use these data to construct a 95% confidence interval to estimate the average receipt total for a Lowe’s customer.

b. What is the margin of error for this sample?

c. Verify your results using Excel.

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