Explore BrainMass

Explore BrainMass

    Hypothesis test - mean (single small sample) Operating temp.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    The mean operating temperature of an aircraft engine during level cruize is supposed to be 190 degrees. An airline tested one particular engine at randomly selected times. The mean temperature on these 25 tests was 193 degrees, with a standard deviation of 3 degrees. Should the pilot worry about th engine running hot? Conduct the appropriate hypothesis test at a significance level of 0.05.

    © BrainMass Inc. brainmass.com June 3, 2020, 9:31 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/hypothesis-test-mean-single-small-sample-operating-temp-186001

    Solution Preview

    See the attached file for complete solution. The text here may not be copied exactly as some of the symbols / tables may not print.

    Step 1: Set the hypothesis. The claim made will be the alternate hypothesis.
    H0: = 190
    H1: > 190

    Step 2: Set the Level of ...

    Solution Summary

    This post explains the step-by-step process for conducting five-step hypothesis testing for mean with one sample. The steps are explained with formulas and calculations along with interpretation of the final results. The post will help students learn the hypothesis testing and result interpretation in easy way.

    $2.19

    ADVERTISEMENT