Explore BrainMass

Explore BrainMass

    Description of Hypothesis Testing: Five step method T test

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

    A vinyl siding company claims that the mean time to install siding on a medium-size house is at most 20 hours with a standard deviation of 3.7 hours. A random sample of 40 houses sided in the last three years has a mean installation time of 20.8 hours. At the 0.05 significance level, can a claim be made that it takes longer on average than 20 hours to side a house?

    a. State the null and alternate hypotheses.

    Ho:
    H1:

    b. State the decision rule

    c. Compute the value of the test statistic.

    d. Formulate the decision rule.

    e. What is your decision regarding the null hypothesis? Interpret the result.

    © BrainMass Inc. brainmass.com June 3, 2020, 10:00 pm ad1c9bdddf
    https://brainmass.com/statistics/students-t-test/description-hypothesis-testing-five-step-method-t-test-209698

    Solution Summary

    The solution provides a step by step method for the calculation of a T test. Formula for the calculation and interpretation of the results are also included.

    $2.19

    ADVERTISEMENT