Nelson Industries manufactures a part for a type of aircraft engine that is becoming obsolete. The sales history for the last 10 years is as follows: Year Sales Year Sales
1998  945  2003 420
1999 875  2004  305
2000 760  2005  285
2001  690 2006 250
2002 545 2007 210

Required:
a. Plot sales versus time.
b. Estimate the regression model for a linear time trend of sales.
c. What is the root-mean-squared error of the linear regression estimates for these 10 years?
d. Using this model, estimate sales for year 11.

Leon and sara are arguing over when the best time is to degrease soup. leon says that it's easiest to degrease soup when it's boiling. sara says it's easiest to degrease soup when it's cold. who is correct? a. neither leon nor sara is correct. b. leon is correct. c. both leon and sara are correct. d. sara is correct. student b   incorrect which following answer correct?

You have recently been made a department head of the new regional office. in getting to know your departmental staff, you have noticed that one of your inexperienced employees is not following through on assigned tasks. she is enthused about her new job and wants to get ahead in the organization. which alternative represents the most effective leadership style: a. discuss the lack of follow-through with her and explore thealternative ways this problem can be solved. b. specify what she must do to complete the tasks but incorporate any suggestions she may have. c. define the steps necessary for her to complete the assigned tasks and monitor her performance frequently. d. let her know about the lack of follow-through and give hermore time to improve her performance.

What part of the rational model of decision-making does the former business executive “elliott” have a problem completing?