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Banking fees have received much attention during the recent economic recession as banks look for ways...

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Basic Math

Banking fees have received much attention during the recenteconomic recession as banks look for ways to recover from thecrisis. A sample of 32 customers paid an average fee of ?$12.33 permonth on their? interest-bearing checking accounts. Assume thepopulation standard deviation is ?$1.75. Complete parts a and bbelow. a. Construct a 95?% confidence interval to estimate theaverage fee for the population. The 95?% confidence interval has alower limit of ?$ nothing and an upper limit of ?$ nothing. ?(Roundto the nearest cent as? needed.) b. What is the margin of error forthis? interval? ?$ nothing ?(Round to the nearest cent as? needed.)

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Solution Given that 1233 175n 32At 95 confidence level    See Answer
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