27)The probabilities below were obtained by entering the values ofn=6 and p=0.16

Question

27)The probabilities below were obtained by entering the values ofn=6 and p=0.167. In a clinical test of the drug Lipitor,16.7% of the subjects treated with 10mg of atorvastatin experiencedheadaches. In each case, assume that 6 subjects arerandomly selected and treated with 10mg of the drug, then find theindicated probability.
Binomial with n=6 and p=0.167000 x P(X = x) 0.00 0.3341 1.00 0.4019 2.00 0.2014 3.00 0.0538 4.00 0.0081 5.00 0.0006 6.00 0.0000 a) Find the probability that more than one subject experiencesheadaches. b) Is it unusual to have more than one of six subjectsexperience headaches? Binomial with n=6 and p=0.167000 x P(X = x) 0.00 0.3341 1.00 0.4019 2.00 0.2014 3.00 0.0538 4.00 0.0081 5.00 0.0006 6.00 0.0000 a) Find the probability that more than one subject experiencesheadaches. b) Is it unusual to have more than one of six subjectsexperience headaches? x P(X = x) 0.00 0.3341 1.00 0.4019 2.00 0.2014 3.00 0.0538 4.00 0.0081 5.00 0.0006 6.00 0.0000

Explanation / Answer

a) P(X>1) = 1 - P(X=0) - P(X=1) = 1-0.3341-0.4019 =0.264 b) Yes it is unusual, because the probability of 26.4% of haveingmore than one of six subjects experience headaches is RELATIVELYlow

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