This Question: 2 pts 5 of 15 (4 complete) This Quiz: 30 pts of flu symptoms for

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This Question: 2 pts 5 of 15 (4 complete) This Quiz: 30 pts of flu symptoms for a person not receiving any treatment is 0.029 In a clinical trial of a common drug used to lower cholesterol, 29 of 896 people treated The experienced fiu symptoms. Assuming the drug has no effect on the likelihood of flu symptoms, estimate the probability that at least 29 people experience flu symptoms (a) P/X 2 29)-(Round to four decimal places as needed) O A. The drug increases the likelithood of flu symptoms because x 2 29 is highly unlikely What do these results suggest about flu symptoms as an adverse reaction to the drug? (b) What does the result from part (a) suggest? O B. The drug has no effect on flu symptoms because x 2 29 is not highly unlikely

Explanation / Answer

Solution:- Given that n = 896, p = 0.029

Mean = µ = n*p = 896*0.029 = 25.984

standard deviation : = sqrt(896*0.029*0.971) = 5.0230

a) P(X >= 29) = P( Z > (28.5 - 25.984)/5.0230)
= P( Z > 0.5009)
= 0.3085

(b) option B.

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