A random sample of 87 observations produced a mean x=25.6 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.   The​ 95% confidence interval is enter your response here,enter your response here. ​(Use integers or decimals for any numbers in the expression. Round to two decimal places as​ needed.)

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