Explore BrainMass

Explore BrainMass

    Hypothesis testing

    Not what you're looking for? Search our solutions OR ask your own Custom question.

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

    The "Mars" division of a big auotmobile manufacturer specializes in manufacturing scooters for export. The company claims that these scooters average at least 55 miles per gallon in city driving. An independant consumer avocate road tested a sample of 25 scooters. The sample showed an average of 60 miles per gallon, with a standard deviation of 10 miles per gallon. At 0.10 level of significance, can the company's claim be rejected?

    This problem is worked.

    © BrainMass Inc. brainmass.com May 24, 2023, 1:16 pm ad1c9bdddf

    Solution Preview

    This company's claims cannot be rejected. You will notice that they say the scooters get AT LEAST 55 miles to the gallon ...

    Solution Summary

    Steps in hypothesis testing are shown.