An electrical firm manufactures light bulbs that have a lifetime that is approximately normally distributed with a mean of 800 hours and a standard deviation of 44 hours. Test the hypothesis that u = 800 hours against the alternative, u* 800 hours, if a random sample of 32 bulbs has an average life of 779 hours. Use a P-value in your answer. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Find the test statistic. O(Round to two decimal places as needed.) Find the P-value. O (Round to three decimal places as needed.) What is the appropriate conclusion for this test? Do not reject Ho and conclude that there is not sufficient evidence to conclude that the mean lifetime of the lightbulbs is not equal to 800 hours. In general, H, would be rejected for significance levels less than the P-value.

An electrical firm manufactures light bulbs that have a lifetime that is approximately normally distributed with a mean of 800 hours and a standard deviation of 44 hours. Test the hypothesis that u = 800 hours against the alternative, u* 800 hours, if a random sample of 32 bulbs has an average life of 779 hours. Use a P-value in your answer. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Find the test statistic. O(Round to two decimal places as needed.) Find the P-value. O (Round to three decimal places as needed.) What is the appropriate conclusion for this test? Do not reject Ho and conclude that there is not sufficient evidence to conclude that the mean lifetime of the lightbulbs is not equal to 800 hours. In general, H, would be rejected for significance levels less than the P-value.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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