Calculate the margin of error with confidence

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The manager of The Cheesecake Factory in Memphis reports that on six randomly selected weekdays, the number of customers served was 145, 190, 110, 225, 230, and 260. She believes that the number of customers served on weekdays follows a normal distribution. [You may ?nd it useful to reference the stable. Round intermediate calculations to at least 4 decimal places. Round "sample mean" and "sample standard deviation" to 2 decimal places and tvalue to 3 decimal places and ?nal answers to 2 decimal places} Click here forthe Excel Data File

a. Calculate the margin of error with 95% confidence.

b. Construct the 95% con?dence interval for the average number of customers served on weekdays. Lower limit Upper limit

 

Reference no: EM133186956

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