The article “Predicting Profit Performance for Selecting Candidate International Construction Projects” (S. Han, D. Kim, and H. Kim, Journal of Construction Engineering and Management Science, 2007:...

The article “Predicting Profit Performance for Selecting Candidate International Construction Projects” (S. Han, D. Kim, and H. Kim, Journal of Construction Engineering and Management Science, 2007: 425–436) presents an analysis of the profit of international construction projects. In a sample of 126 projects, the average profit margin (in percent) was 8.24 with a standard deviation of 16.33. A test is made of H₀: μ ≥ 10 versus H₁: μ < 10.="" a)="" find="" the="" p-value.="" b)="" do="" you="" believe="" that="" it="" is="" plausible="" that="" the="" mean="" profit="" margin="" is="" at="" least="" 10%,="" or="" are="" you="" convinced="" that="" it="" is="" less="" than="" 10%?="" explain="" your="">