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Find the 90% confidence interval for the variance and the standard deviation of the ages of seniors at Oak Park College if a sample of 24 students has a standard deviation of 2,3 years. Assume the variable is normally distribution

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    Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

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    ± 1.645 SEm

    Standard Error of the mean = SEm = SD/√(n-1)

    That is for a distribution of means.

    For a distribution of scores

    ± 1.645 SD

  • college - ,

    Given that the distance from the earth to the sun is 1.5 times 10 to the power m and the

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