Explore BrainMass

Explore BrainMass

    Critical Value for a right-tail test of means

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

    Carver Memorial Hospital's surgeons have a new procedure that they think will decrease the time to perform an appendectomy. A sample of 8 appendectomies using the old method had a mean of 38 minutes with a variance of 36 minutes, while a sample of 10 appendectomies using the experimental method had a mean of 29 minutes with a variance of 16 minutes. Use alpha = .10 for all tests. For a right-tail test of means (assume equal variances) the critical value is

    1.746
    1.337
    2.120
    2.754

    © BrainMass Inc. brainmass.com June 3, 2020, 10:17 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/critical-value-for-a-right-tail-test-of-means-224096

    Solution Preview

    Carver Memorial Hospital's surgeons have a new procedure that they think will decrease the time to perform an appendectomy. A sample of 8 appendectomies using the old method had a mean of 38 minutes with a variance of 36 minutes, while a sample of 10 appendectomies using the experimental method had a mean of 29 minutes with a variance of 16 minutes. Use alpha (a) = .10 for all tests.For a right-tail test of means ...

    Solution Summary

    Calculates the critical value for a right-tail test of means.

    $2.19

    ADVERTISEMENT