# Question

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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