Mathematics, 25.10.2021 08:10 awesomegrill
the mean lifetime of a sample of 150 torch bulbs produced by a company is computed to be 400 hours with a standard deviation of 80 hours . if m is the mean lifetime of all the bulbs produced by the company, test the hypothesis m=450 hours against m=450 hours at 5% level of significance.
Answers: 1
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Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?
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