A company with a fleet of 150 cars found that the emissions systems of 7 out of the 22 they tested failed to meet pollution control guidelines.
Is this strong evidence that more than 20% of the fleet might be out of compliance?
Test an appropriate hypothesis and state your conclusion.
Be sure the appropriate assumptions and conditions are satisfied before you proceed.
A company with a fleet of 150 cars found that the emissions systems of 7 out of the 22 they tested failed
Yulia
2021-08-17
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Roosevelt Houghton
Answered 2021-08-18
Author has 106 answers
1.
2. Assumed SRS. sample is less than 10% of population . (0.20)(22)<10 and (0.80)(22)>10
2. Assumed SRS. sample is less than 10% of population . (0.20)(22)<10 and (0.80)(22)>10
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