The following model is a simplified version of the multiple regression model used by Biddle and Hamermesh (1990) to study the tradeoff between time spent sleeping and working and to look at other factors affecting sleep:
sleep = β0 + β1totwrk + β2educ + β3age + u,
where sleep and totwrk (total work) are measured in minutes per week and educ and age are measured in years.
1. If adults trade off sleep for work, what is the sign of β1?
2. What signs do you think β2 and β3 will have?
3. Using the data in SLEEP75.RAW, the estimated equation is
= 3,638.25 - .148 totwrk - 11.13 educ + 2.20 age n = 706, R2 = .113.
If someone works five more hours per week, by how many minutes is sleep predicted to fall? Is this a large tradeoff?
4. Discuss the sign and magnitude of the estimated coefficient on educ.
5. Would you say totwrk, educ, and age explain much of the variation in sleep? What other factors might affect the time spent sleeping? Are these likely to be correlated with totwrk?
Answers: 3
Other questions on the subject: Business
Business, 21.06.2019 20:20, thedocgalloway
The management at a pesticide manufacturing company has observed a decline in quality measures. the managers ask robin, the firm's hr manager, to investigate whether training might solve the problem. robin conducts needs assessment and recommends a training plan. which of the following conditions would most likely have been an observation during robin's person analysis?
Answers: 2
Business, 22.06.2019 17:50, pickles3233
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends > a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 1
Business, 22.06.2019 20:10, NorbxrtThaG
Assume that a local bank sells two services, checking accounts and atm card services. the bank’s only two customers are mr. donethat and ms. beenthere. mr. donethat is willing to pay $8 a month for the bank to service his checking account and $2 a month for unlimited use of his atm card. ms. beenthere is willing to pay only $5 for a checking account, but is willing to pay $9 for unlimited use of her atm card. assume that the bank can provide each of these services at zero marginal cost. refer to scenario 17-5. if the bank is unable to use tying, what is the profit-maximizing price to charge for a checking account
Answers: 3
Business, 23.06.2019 05:10, dinero2875
Lakota is buying a new laptop. he wants to use google as his main search engine. he should be sure which internet browser(s) are loaded on his computer?
Answers: 2
You know the right answer?
The following model is a simplified version of the multiple regression model used by Biddle and Hame...
Questions in other subjects:
Mathematics, 03.09.2021 21:10
Mathematics, 03.09.2021 21:10
Social Studies, 03.09.2021 21:10
Mathematics, 03.09.2021 21:10
