The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.02 level

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answerhappygod
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The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.02 level

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The director of research and development is testing a new drug.
She wants to know if there is evidence at the 0.02 level
that the drug stays in the system for more
than 394 minutes. For a sample of 68 patients,
the mean time the drug stayed in the system
was 398 minutes. Assume the standard deviation is known
to be 21.
Step 4 of 5:
Enter the decision rule.
Reject H0 if z>
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