Mathematics, 21.01.2021 03:20, anonymousanon
2. A large appliance company estimates that the variance of the life of its appliances is 3.
You work for a consumer advocacy group and are asked to test the claim at a = 0.05.
You find that the sample of the lives of 27 appliances has a variance of 2.8.
Answers: 2
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2. A large appliance company estimates that the variance of the life of its appliances is 3.
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