4. A researcher would like to test the effectiveness of a newly developed drug to cure...
4. A researcher would like to test the effectiveness of a newly developed drug to cure the common cold. The researcher has determined that under normal circumstances symptoms of a cold are controlled after an average of 7.6 days with a standard deviation of 0.4 days. A cold victim is given the new drug and is symptom free in 6.8 days.
- Find the probability that a person with a cold would be symptom free in 6.8 days without the drug.
The probability is _________________.
- Explain whether the drug merits further testing.
Homework Answers
Ans:
a)
z=(6.8-7.6)/0.4
z=-2
P(z<=-2)=0.0228
b)Probability indicates that drug is effective,as probability of recovering within 6.8 days is very less without drug.
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4. A researcher would like to test the
effectiveness of a newly developed drug to cure...
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