An article presents an analysis of the profit of internationalconstruction projects. In a sample of 126 projects, the averageprofit margin (in percent) was 8.27 with a standard deviation of16.33. A test is made of H0 : μ ≥ 10versus H1 : μ < 10.
- Find the P-value. Round the answer to four decimalplaces.
This is what i have, but for some reason I'm being told it iswrong.
(8.27 - 10 ) / (16.33 / sqrt 126) = -1.879 - -> -1.88 -- >Z = .0301
- The P-value calculated for testingH0 : µ ≥ 10 versusH1 : µ < 10 is not a smallprobability, hence it is plausible that the mean profit margin is10% or more. False.
