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?

Nellie lumpkin, who suffered from dementia, was admitted to the picayune convalescent center, a nursing home. because of her mental condition, her daughter, beverly mcdaniel, signed the admissions agreement. it included a clause requiring the par- ties to submit any dispute to arbitration. after lumpkin left the center two years later, she filed a suit against picayune to recover damages for mistreatment and malpractice. [covenant health & rehabilitation of picayune, lp v. lumpkin, 23 so.2d 1092 (miss. app. 2009)] (see page 91.) 1. is it ethical for this dispute—involving negligent medical care, not a breach of a commercial contract—to be forced into arbitration? why or why not? discuss whether medical facilities should be able to impose arbitration when there is generally no bargaining over such terms.

Although appealing to more refined tastes, art as a collectible has not always performed so profitably. during 2003, an auction house sold a sculpture at auction for a price of $10,211,500. unfortunately for the previous owner, he had purchased it in 2000 at a price of $12,177,500. what was his annual rate of return on this sculpture? (a negative answer should be indicated by a minus sign. do not round intermediate calculations and enter your answer as

Assume the perpetual inventory method is used. 1) the company purchased $12,500 of merchandise on account under terms 2/10, n/30. 2) the company returned $1,200 of merchandise to the supplier before payment was made. 3) the liability was paid within the discount period. 4) all of the merchandise purchased was sold for $18,800 cash. what effect will the return of merchandise to the supplier have on the accounting equation?