GB 513 Unit 4 Assignment
GB 513 Unit 4 Assignment
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Question 1 Shown below are rental and leasing revenue figures for office machinery and equipment in the United States over a seven-year period according to the U . S . Census Bureau . Use these data to run a linear regression and then forecast the rental and leasing revenue for the year 2012 . Year Rental and Leasing ($ millions ) 2004 . 2004 5,860 2005 . 2005 6,632 2006 . 2006 7,125 2007 . 2007 6,000 2008 . 2008 4,380 2009 . 2009 3,326 2010 . 2010 2,642 Question 2 Suppose a researcher gathered survey data from 19 employees and asked the employees to rate their job satisfaction on a scale from 0 to 100 ( with 100 being perfectly satisfied ). Suppose the following data represent the results of this survey . Assume that relationship with supervisor is rated on a scale from 0 to 50 ( 0 represents poor relationship and 50 represents an excellent relationship ), overall quality of the work environment is rated on a scale from 0 to 100 ( 0 represents poor work environment and 100 rep resents an excellent work environment ), and opportunities for advancement is rated on a scale from 0 to 50 ( 0 represents no opportunities and 50 represents excellent opportunities ). Answer the following questions : A ) What is the regression formula ? B ) How reliable do you think the estimates will be based on this formula ? How can you tell ? C ) Are there any variables that do not appear to be good predictors of Job satisfaction ? How can you tell ? D ) If a new employee reports that her relationship with her supervisor is 40 , finds the quality of the work environment to be scored at 75 , works 60 hours per week and rates her opportunities for advancement to be at 30 , what would you expect her job satisfaction score to be ? Job satisfaction 55 20 85 65