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According to Reader's Digest, 41% of primary care doctors think their patients receive unnecessary medical care....

According to Reader's Digest, 41% of primary care doctors think their patients receive unnecessary medical care.

a. Suppose a sample of 330 primary care doctors was taken. Show the sampling distribution of the proportion of the doctors who think their patients receive unnecessary medical care. Use z-table. (to 4 decimals)
E(p)=
σ(p)=

b. What is the probability that the sample proportion will be within +/- .03 of the population proportion. Round your answer to four decimals.

c. What is the probability that the sample proportion will be within +/- .05 of the population proportion. Round your answer to four decimals.

math   Statistics-And-Probability   
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Answer #1

仁0.nt ,h: 30 a ) L 003) = P( 12-1 L 1-107) ニー0.1355 + 0,8665 P(RI 1.8)

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