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  3. a random sample of 91 observations produced a mean

A random sample of 91 observations produced a mean x=26.2 and a standard deviation s=2.6 a. Find a​ 95% confidence interval...

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Verified Solution

Question

Statistics

A random sample of

91

observations produced a mean

x=26.2

and a standard deviation

s=2.6

a. Find a​ 95% confidence interval for

μ.

b. Find a​ 90% confidence interval for

μ.

c. Find a​ 99% confidence interval for

μ.

Answer & Explanation Solved by verified expert
3.9 Ratings (668 Votes)
Solution at2df 1987Margin of error E t2df s n 1987 26 91Margin of error E 05The 95 confidence    See Answer
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