United Medicine Inc claims that a drug Viro, significantly relieves the symptoms

Question

United Medicine Inc claims that a drug Viro, significantly relieves the symptoms of a certain viral infection for 65 percent of all patients. Suppose that this drug is given to 15 randomly sheeted patients who have been diagnosed with the viral infection Let x equal the number of the 15 randomly selected patients whose symptoms are significantly relieved. What distribution describes the random variable x ? (Round your answers to 1 decimal place.) Assuming that the company's claim is correct find P(x

Explanation / Answer

a) n=15 , p=0.65

b) P(x<=3) = P(x=0)+P(x=1)+P(x=2)+P(x=3)=0.0000001+0.0000040+0.0000525+0.0004222=0.000479=0.0005

c)No; if the claim is true, the probability of 3 or fewer being relieved is very small

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