The manager of The Cheesecake Factory in Memphis reports that on six randomly selected weekdays, the number of customers served was 260, 195, 125, 190, 150, and 120. She believes that the number of customers served on weekdays follows a normal distribution. (You may find it useful to reference the t table.) Click here for the Excel Data File a. Calculate the margin of error with 90% confidence. (Round final answer to 2 decimal places.) Margin of error b. Construct the 90% confidence interval for the average number of customers served on weekdays. (Round final answers to 2 decimal places.) Lower limit Upper limit The manager of The Cheesecake Factory in Memphis reports that on six randomly selected weekdays, the number of customers served was 260, 195, 125, 190, 150, and 120. She believes that the number of customers served on weekdays follows a normal distribution. (You may find it useful to reference the t table.) Click here for the Excel Data File a. Calculate the margin of error with 90% confidence. (Round final answer to 2 decimal places.) Margin of error b. Construct the 90% confidence interval for the average number of customers served on weekdays. (Round final answers to 2 decimal places.) Lower limit Upper limit