Explore BrainMass

Explore BrainMass

    Hypothesis testing : T test

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

    Please help with the following problems. Provide step by step calculations.

    A new weight watching company, FatZilla, advertises that those who join their program average at least a 10 pound weight loss during the first two weeks, with a standard deviation of 2.8 pounds. A random sample of 49 people who joined the program finds an average loss of 10.7 pounds.

    a) What is the null hypothesis to be tested?
    b) What are the values of the test statistic and of p?

    © BrainMass Inc. brainmass.com June 4, 2020, 1:48 am ad1c9bdddf
    https://brainmass.com/statistics/students-t-test/hypothesis-testing-conducting-ttest-420902

    Solution Preview

    Please see the attached file for the solution.

    Help on Prob and Stats Question:

    A new weight watching company, FatZilla, advertises that those who join their program average at least a 10 pound weight loss during the first two weeks, with a standard deviation of 2.8 pounds. A random ...

    Solution Summary

    This solution provides a step by step method for computing a test statistic given average, standard deviation and sample size. It includes an explanation of the null hypothesis to be tested and the values of the test statistic. Step-by-step calculations are given.

    $2.19

    ADVERTISEMENT