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re approximately normally distributed with a mean of 680 days and a ion claims that the standard deviation of its electric bulbs is less tha a hypothesis test to see if BIG Corporation's claim is correct. State t e hypothesis H₁ that we would use for this test. μ

re approximately normally distributed with a mean of 680 days and a ion claims that the standard deviation of its electric bulbs is less tha a hypothesis test to see if BIG Corporation's claim is correct. State t e hypothesis H₁ that we would use for this test. μ

MATLAB: An Introduction with Applications
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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An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of 680 days and a standard deviation of 125. BIG Corporation claims that the standard deviation of its electric bulbs is less than 125. Suppose that we want to carry out a hypothesis test to see if BIG Corporation's claim is correct. State the null hypothesis Ho and the alternative hypothesis H₁ that we would use for this test. Ho: D H₁: D н OSO O X 0>0 ロ=ロ 0#0 Р S O<O 020
Transcribed Image Text:An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of 680 days and a standard deviation of 125. BIG Corporation claims that the standard deviation of its electric bulbs is less than 125. Suppose that we want to carry out a hypothesis test to see if BIG Corporation's claim is correct. State the null hypothesis Ho and the alternative hypothesis H₁ that we would use for this test. Ho: D H₁: D н OSO O X 0>0 ロ=ロ 0#0 Р S O<O 020
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