Explore BrainMass

Explore BrainMass

    One tailed test of Hypothesis

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

    The McCollough Corporation, a producer of various kinds of batteries, has been producing D size batteries with a life expectancy of 87 hours. Due to an improved production process, the management believes that there has been an increase in the life expectancy of their D size batteries. A sample of 36 batteries showed an average life of 88.5 hours. Assume from past information that is known that the standard deviation of the population is 9 hours. Use a 0.01 level of significance and test management's belief.

    © BrainMass Inc. brainmass.com June 3, 2020, 8:52 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/one-tailed-test-of-hypothesis-156478

    Solution Preview

    The McCollough Corporation, a producer of various kinds of batteries, has been producing D size batteries with a life expectancy of 87 hours. Due to an improved production process, the management believes that there has been an increase in the life expectancy of their D size batteries. A sample of 36 batteries showed an average life of 88.5 hours. Assume from past information that is known that the standard deviation of the population is 9 hours. Use a 0.01 level of ...

    Solution Summary

    The solution conducts a one tailed test of Hypothesis.

    $2.19

    ADVERTISEMENT