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    Hypothesis Testing of Sprinklers

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    I need some help reviewing the sample problem below:
    Sprinkler Systems. A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135 degrees F. To test this claim, you randomly select a sample of 32 systems and find the mean activation temperature between 133 degrees F with a standard deviation of 3.3 degrees F. At a level of significance of 0.10, do you have enough evidence to reject the manufacturers claim?

    You need to do the following:
    • Post the statement of this problem.
    • Discuss the importance of obtaining a random sample.
    • Identify the claim and state Ho and Ha.
    • State the level of significance.
    • Discuss the possibility of a Type I or Type II error.

    On a separate page you need to do the following:
    • Copy and paste the statement of the problem and your Ho and Ha from the previous page.
    • Find the test statistic.
    • Find the p-value.
    • Decide whether to reject the null hypothesis.
    • Interpret the decision in the context of the original claim.

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    https://brainmass.com/statistics/type-i-and-type-ii-errors/hypothesis-testing-sprinklers-577820

    Solution Preview

    Solution:
    • Post the statement of this problem.
    The average activating temperature is at least 135 degrees F.
    • Discuss the importance of obtaining a random sample.
    It is hard to get the whole population.
    • Identify the claim and state Ho and Ha.
    Ho: The average activating temperature is at least ...

    Solution Summary

    This solution consists of details of using one sample t-test to test the claim that the average activating temperature is at least 135 degrees F.

    $2.19

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