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Help with statistics homework

Statistics
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An important factor in selling a residential property is the number of people who look through the home. A sample of 19 homes recently sold in Buffalo. New York area revealed the mean number looking through each home was 18 and the standard deviation of the sample was 5 people

Develop a 95% confidence interval for the population mean ( use table) round your answer to 2 decimal places

Confidence interval for the population mean is between

Apr 7th, 2015

zalpha for 95% confidence level is 1.96, thus 

-1.96=<(x-18 )/5<=1.96 

18-9.80=<x<=9.80+18 

8.20=<x<=27.80

 

Apr 7th, 2015

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