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    Hypothesis testing for mean

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    A sample of 93 IQ scores was randomly selected from a certain population. At the 0.03 level of significance, test the hypothesis that the population has a mean IQ of 105. Assume that the population standard deviation is 11.9 and that the sample mean was 107 for the 93 scores.

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    Solution :

    Sample Mean =
    Population mean =

    Ho: Population has a mean IQ score of ...

    Solution Summary

    The solution describes the steps in hypothesis testing for population mean based upon given sample mean and population standard deviation.