SOLUTION: A manufacturer wants to increase the absorption capacity of a sponge. Based on past data, the average sponge could absorb 4.5 ounces. After the redesign, the absorption amounts of
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Question 1159508: A manufacturer wants to increase the absorption capacity of a sponge. Based on past data, the average sponge could absorb 4.5 ounces. After the redesign, the absorption amounts of a sample of 85 sponges were 4.2 ounces. What is the critical value for this test at the 0.01 level of significance to test? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! This is going to be a t-test with the critical value t(0.995,df=84)=2.636
Critical value for a 2-way test is |t|>2.636
