You have been asked to determine how much tutoring increases performance on the final exam. To answer this question, you have randomly selected 4 students from the class and randomly assigned them to receive different levels of tutoring per week. Name Hours of Tutoring Per Week Final Exam Score
Sandra 0 70
John 1 75
Sally 2 85
Juan 4 90
a. Estimate the parameters from the following regression model:
EXCM - B - B hours+u
b. If assumptions 1-4 are met what is the return to studying?
c. If assumptions 1-4 hold what would you expect a student to get in the exam if she studied 3.5 hours?
d. If assumptions 1-4 hold what would you expect someone who did not study at all to get on the exam?

Suppose you have just been hired as the chief diversity officer of a large company. previous mentoring programs at this company have not been successful. after inquiring about previous efforts, you discover that most mentor pairs met just a few times, but very few lasting or meaningful mentoring relationships were created. there were also a significant number of employees that did not even attempt to seek out a mentor relationship. which of the following may be a reason why prior mentoring programs at your company failed? check all that apply. a) minorities and women are much less likely to develop mentoring relationships than white malesb) mentoring is not an effective way for organizations to develop female and minority employeesc) due to specific laws governing appropriate workplace behavior, senior-level male executives were reluctant to cultivate mentoring relationships with female employees, fearing negative repercussionsd) fear of creating a future competitor within the company, senior-level female executives were hesitant to mentor other female employees

Clonex labs, inc., uses the weighted-average method in its process costing system. the following data are available for one department for october: percent completed units materials conversion work in process, october 1 53,000 90 % 65 % work in process, october 31 29,000 74 % 52 % the department started 381,000 units into production during the month and transferred 405,000 completed units to the next department. required: compute the equivalent units of production for october.

Biochemical corp. requires $600,000 in financing over the next three years. the firm can borrow the funds for three years at 10.80 percent interest per year. the ceo decides to do a forecast and predicts that if she utilizes short-term financing instead, she will pay 7.50 percent interest in the first year, 12.15 percent interest in the second year, and 8.25 percent interest in the third year. assume interest is paid in full at the end of each year. a)determine the total interest cost under each plan. a) long term fixed rate: b) short term fixed rate: b) which plan is less costly? a) long term fixed rate plan b) short term variable rate plan