The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announcedthat the mean breaking strength is 2180 pounds with a variance of 33,672.25. A consumer protection agency claims that the actualvariance is higher. Suppose that the consumer agency wants to carry out a hypothesis test to see if its claim can be supported.State the null hypothesis H and the alternative hypothesis H₁ they would use for this test.Ho:H₁:03

The mean breaking strength is 2180 pounds with a varaince of 33,672.25.The claim is that the actual…

Answered: The breaking strengths of cables…

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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The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.8 auto accidents per day with a variance of 0.0036 . The actuaries of the company claim that the variance of the number of accidents per day is no longer equal to 0.0036 . Suppose that we want to carry out a hypothesis test to see if there is support for the actuaries' claim. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test. H0:H1:
Which is NOT a correct statement about the Null hypothesis a. The average days per week that elementary students lifted weights was the same for 2011 and 2013 b. The average time spent in sedentary behaviors is not different between male and female c. The mean body mass index for adults in County A is not different from the mean body mass index in adults in County B d. The mean sleep time for 4th grade students is different from the mean sleep time for 5th grade students

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