(a) Make an Excel line graph of the data on employee work stoppages. (b) Discuss the underlying causes that might explain the trend or pattern. (c) Fit three trends (linear, exponential, quadratic). (d) Which trend model is best, and why? If none is satisfactory, explain. (e) Make a forecast for 2007, using a trend model of your choice or a judgment forecast. Strikers
U.S. Workers Involved in Work Stoppages (thousands) | |||
Year | Strikers | Year | Strikers |
1997 | 339 | 2002 | 46 |
1998 | 387 | 2003 | 129 |
1999 | 73 | 2004 | 171 |
2000 | 394 | 2005 | 100 |
2001 | 99 | 2006 | 70 |
Source: http://dala.bls.gov
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