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    Test of Hypothesis Using T test

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    From a population of cereal boxes marked "12 ounces," a sample of 16 boxes is selected and the contents of each box weighed. The sample revealed a mean of 11.7 ounces with a standard deviation of 0.8. Test to see if the mean of the population is at least 12 ounces. Use a 0.05 level of significance. (may use traditional or p-value method)

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    Solution Preview

    From a population of cereal boxes marked "12 ounces," a sample of 16 boxes is selected and the contents of each box weighed. The sample revealed a mean of 11.7 ounces with a standard deviation of 0.8. Test to see if the mean of the population is at least 12 ounces. Use a 0.05 level of significance. (may use traditional or p-value method)

    Data
    Hypothesized mean= 12 ounces
    Standard deviation= 0.8 ounces
    Sample mean= 11.7 ounces
    Sample size= 16
    Significance level= 0.05 0r 5%
    Population standard deviation (Known, Not Known)= Not Known

    1) Hypothesis ...

    Solution Summary

    The hypothesis that the mean of the population of cereal boxes is at least 12 ounces has been tested.

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