Which of the following are the best definitions of the decision variables? – finish time of activity , for – time to be crashed, i. e., saved, for activity ,for – start time of activity , for – time to be crashed, i. e., saved, for activity ,for – finish time of activity , for – start time of activity , for – start time of activity ,for – time finally used by activity i space, for i equals A comma B comma C comma D comma E comma F comma G comma H None of the above.

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups. b. we cannot infer anything from these data since the distribution of salaries is likely right skewed. c. you cannot draw any valid conclusions because the sample sizes are different. d. more students should complete internships because having an internship produces a higher salary.

You hold a diversified $100,000 portfolio consisting of 20 stocks with $5,000 invested in each. the portfolio's beta is 1.12. you plan to sell a stock with b = 0.90 and use the proceeds to buy a new stock with b = 1.50. what will the portfolio's new beta be? do not round your intermediate calculations.

Emerson has an associate degree. based on the bar chart below, how will his employment opportunities change from 2008 to 2018