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    A hypothesis testing for population mean using t

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    The mean BMI in patients free of diabetes is 28.2. The investigator hypothesizes that BMI is much higher. Based on the data, is there evidence that BMI is significantly higher than 28.2? Use a 5% level of significance.

    25 27 31 33 26 28 38 41 24 32 35 40

    Critical Value =
    t =

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    Solution Preview

    We first need to calculate sample mean and sample standard ...

    Solution Summary

    The solution gived detailed steps on performing a hypothesis testing for population mean. All formula and calcuations are shown and explained.