The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.05 level that the drug stays in the system for less than 314 minutes. For a sample of 7 patients, the average time the drug stayed in the system was 309 minutes with a standard deviation of 21. Assume the population distribution is approximately normal. Step 1 of 5 : State the null and alternative hypotheses.
Added by Julia V.
Step 1
Mathematically, this can be represented as H0: μ ≥ 314. Show more…
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