Question

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.

Answer 1

if their are choices you should list them. The givens are pretty specific though.

W = E * I is the answer

E (voltage) = W/I is a more refined answer. <<< answe

Explanation:

Answer 2

30

Explanation: