While reviewing the sample of audit​ fees, a senior accountant for the firm notes that the fee charged by the​ firm's accountants depends on the complexity of the return. A comparison of actual charges therefore might not provide the information needed to set next​ year's fees. To better understand the fee​ structure, the senior accountant requests a new sample that measures the time the accountants spent on the audit. Last​ year, the average hours charged per client audit was 3.25 hours. A new sample of 15 audit times shows the following times in hours. Complete parts a and b below.

 

3.3

3.5

3.3

 

3.4

3.9

4.6

 

4.8

2.8

2.7

 

3.8

3.9

3.9

 

4.8

4.9

4.9

 

a)Assume the conditions necessary for inference are met. Find a 95​% confidence interval for the mean audit time.

 

The 95​% confidence interval to estimate the mean audit time is from ? to ?

AccountingQueen

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Status NEW Posted 14 Aug 2017 02:08 PM My Price 8.00

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