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    State the hypotheses, the direction, the p-value, the decision and the conclusion

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    Production process is considered to be under control if the machine parts it makes have a mean length of 35.50 mm with a standard deviation of 0.45 mm. Whether or not the process is under control is decided each morning by a quality control engineer who bases his decision on a random sample of size 36. Should he ask for an adjustment of the machine on a day when he obtains a mean of 35.62 mm? Use a level of significance of .05.

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    https://brainmass.com/statistics/hypothesis-testing/state-the-hypotheses-the-direction-the-p-value-the-decision-and-the-conclusion-68147

    Solution Preview

    Ho: He need not adjust the machine
    Ha: He needs to adjust the ...

    $2.19

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