SOLUTION: Construct a 95% confidence interval for the age of the viewers of the david letterman show. David letterman: 53 46 48 42 35

Algebra ->  Probability-and-statistics -> SOLUTION: Construct a 95% confidence interval for the age of the viewers of the david letterman show. David letterman: 53 46 48 42 35       Log On


   

Question 974101: Construct a 95% confidence interval for the age of the viewers of the david letterman show.
David letterman:
53
46
48
42
35
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Sample Size:

I used a calculator to compute the following
Sample Mean:
Sample Standard Deviation: (approximate)

Using a t-table, with degrees of freedom = df = n-1 = 5-1 = 4, we find that the critical t value at 95% confidence is approximately
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Margin of Error (E)






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Lower Limit L



Upper Limit U



The 95% confidence interval for the population mean of the ages is

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