LIR832-Spring-2004-final-exam - LIR 832 Final Examination...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
LIR 832: Final Examination: Spring, 2004 This examination consists of two parts. The first, worth 45 points consists of four problems each worth 15 points. You are to answer three of your choice. If you answer four, I will base your grade on the three with the lowest scores. The second part of the exam, worth 55 points, is an analytic essay. Instructions for the essay are found in the second section of this examination. The examination is scheduled to last two and one half hours. 1. A friend of yours is interested in the effect of High Performance Work Systems (HPWS) on employees’ ability to return to work after an injury. It is their belief that HPWS makes it more difficult for injured employees to return to work because there are fewer light duty jobs suitable to a person who is not fully able to work. This suggests that (1) a lower percentage of employees will be in light duty capacities in HPWS work sites than in non-HPWS work sites and (2) employees working on HPWS sites will spend longer away from work (have more loss time work days) when they have an accident and than workers in non-HPWS work sites. Your friend has an article in the “Journal of Occupational Health and Medicine” on that very issue. Unfortunately your friend is not familiar with regression models and asks you to explain the statistical findings. The model is estimated on information from 1,000 employees in manufacturing whose work- related injury was sufficiently serious that they have at least one lost work day because of the injury.We expect all of the variables but facility to be positively related DAYSLOST, we expect a negative relationship between FACILITY and DAYSLOST. DAYSLOST = 3.5 + 4.2*SERIOUSNESS + 1.3*AGE + 2.1*FACILITY + 2.2*HPWS (3.4) (.53) (1.2) (1.5) r 2 = .32 Sum of Squared Residuals = 101.5 r 2 31 = . Degress of Freedom = 995 Standard Error in ( ) Where DAYSLOST the number of days between the injury and when the employee returned to work SERIOUSNESS A numeric rating from 0 to 2 indicating the seriousness of the injury. 0 corresponds to the least seriousness, 2 to the most seriousness. AGE The age of the employee at the time of the injury FACITITY A 0/1 variable indicating whether there is a staffed medical facility, such as a nurses station, at the work site (1 = yes) HPWS A 0/1 variable indicating whether the work site has a HPWS work system (1 = yes)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
A. Does the estimate support your friends belief that HPWS are associated with longer time away from work. Explain your answer.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 15

LIR832-Spring-2004-final-exam - LIR 832 Final Examination...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online