Business, 13.10.2020 03:01, jdkrisdaimcc11

A professor decides to run an experiment to measure the effect of time pressure on final exam scores. He gives each of the 400 students in her course the same final exam, but some students have 90 minutes to complete the exam, while others have 120 minutes. Each student is randomly assigned one of the examination times, based on the flip of a coin. Let Y; denote the number of points scored on the exam by the ith student (0 (a) Explain what the term ui represents. Why will different students have different values of ui?
(b) Explain why E(ui|X;) = 0 for this regression model.
(c) Are the other assumptions among SLR.1-SLR.4 satisfied? Explain why.
(d) The estimated model is Y; = 49+0.24X;.
i. Based on the estimated model, predict the average score of students given 90 minutes. Repeat for 120 minutes and 150 minutes.
ii. Compute the average predicted gain in score for a student who is given an additional 10 minutes on the exam.

Answers: 2

Show answers

Other questions on the subject: Business

Business, 22.06.2019 08:40, raffigi

Which of the following statements is true regarding the reporting of outside interests and the management of conflicts? investigators are responsible for developing their own management plans for significant financial interests. the institution must report identified financial conflicts of interest to the u. s. office of research integrity. investigators must disclose their significant financial interests related to their institutional responsibilities and not just those related to a particular project. investigators must disclose all of their financial interests regardless of whether they are related to a research project.

Answers: 3

continue

Business, 22.06.2019 10:00, caz27

Your uncle is considering investing in a new company that will produce high quality stereo speakers. the sales price would be set at 1.5 times the variable cost per unit; the variable cost per unit is estimated to be $75.00; and fixed costs are estimated at $1,200,000. what sales volume would be required to break even, i. e., to have ebit = zero?

Answers: 1

continue

Business, 22.06.2019 13:30, ayoismeisalex

On january 2, well co. purchased 10% of rea, inc.’s outstanding common shares for $400,000, which equaled the carrying amount and the fair value of the interest purchased in rea’s net assets. well did not elect the fair value option. because well is the largest single shareholder in rea, and well’s officers are a majority on rea’s board of directors, well exercises significant influence over rea. rea reported net income of $500,000 for the year and paid dividends of $150,000. in its december 31 balance sheet, what amount should well report as investment in rea?

Answers: 3

continue

Business, 22.06.2019 18:00, Elephants12

What would not cause duff beer’s production possibilities curve to expand in the short run? a. improved manufacturing technology b. additional resources c. increased demand

Answers: 1

continue

Do you know the correct answer?

A professor decides to run an experiment to measure the effect of time pressure on final exam scores...