Twenty-five law periodicals have a mean of $160 and a sample standard deviation of $10. Form...

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Twenty-five law periodicals have a mean of $160 and a sample standard deviation of $10. Form...

Twenty-five law periodicals have a mean of $160 and a sample standard deviation of $10. Form a 95% confidence interval on the population mean.

math Statistics-And-Probability

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solution Given that, Since o is unknown , we use t-distribution Level of significance (2) = 0.05 degree of freedom (d.f) = - thank you

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Twenty-five law periodicals have a mean of $160 and a sample standard deviation of $10. Form...

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Twenty-five law periodicals have a mean of $160 and a sample standard deviation of $10. Form...