A random sample of 91 observations produced a mean x=25.8 and a standard deviation s=2.6. . a. Find a​ 95% confidence in

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answerhappygod
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A random sample of 91 observations produced a mean x=25.8 and a standard deviation s=2.6. . a. Find a​ 95% confidence in

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A random sample of 91 observations produced a mean x=25.8 and astandard deviation s=2.6. .
a. Find a​ 95% confidence interval for .
b. Find a​ 90% confidence interval for .
c. Find a​ 99% confidence interval for .
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