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MATH 221 Week 7 DQ Rejection Region
This pack of MATH 221 Week 7 DQ Rejection Region comprehends:
1. A study claims that the mean survival time for certain cancer patients treated immediately with chemotherapy and radiation is 16 months.
STUDY PLAN: 7.1.29, 7.1.30
OBJECTIVE: TEST A CLAIM ABOUT A MEAN USING CRITICAL VALUES
2. A company that makes colas drinks states that the mean caffeine content per 12ounce bottle of cola is 45 milligrams. You want to test this claim. During your tests, you find that a random sample of thirty 12ounce bottles of cola has a mean caffeine content of 43.3 milligrams with a standard deviation of 6.8 milligrams. At alpha = 0.05, can you reject the company

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