A sociologist hypothesises that less than half of smokers exercise regularly. In a random sample of...
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A sociologist hypothesises that less than half of smokers exercise regularly. In a random sample of 85 smokers, it was found that only 32 exercised regularly. A proportion test was applied. The following R output was produced. Which of the following statements is TRUE? > p < 0.5 > n <-85 > OV <- 32/85 > SE <- sqrt (p*(1-p)/n) 0.5)/SE > Z<- (OV > pnorm(Z) [1] 0.01137015 There is strong evidence in favour of the sociologist's hypothesis. There is insufficient evidence in favour of the sociologist's hypothesis. The probability that the sociologist is right is 1.14%. About 1% of smokers exercise regularly. A sociologist hypothesises that less than half of smokers exercise regularly. In a random sample of 85 smokers, it was found that only 32 exercised regularly. A proportion test was applied. The following R output was produced. Which of the following statements is TRUE? > p < 0.5 > n <-85 > OV <- 32/85 > SE <- sqrt (p*(1-p)/n) 0.5)/SE > Z<- (OV > pnorm(Z) [1] 0.01137015 There is strong evidence in favour of the sociologist's hypothesis. There is insufficient evidence in favour of the sociologist's hypothesis. The probability that the sociologist is right is 1.14%. About 1% of smokers exercise regularly.
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The detailed answer for the above question is provided below Answer p 05 n OV SE Z 2 pnormZ 1 001137... View the full answer
Related Book For
Business Statistics For Contemporary Decision Making
ISBN: 9781119577621
3rd Canadian Edition
Authors: Ken Black, Ignacio Castillo
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