Exponential Smoothing and Control Charts
Not what you're looking for?
For the following data use the weighting constant x = 0.5 and exponential smoothing to determine the forecast for 2005.
Subscribers Subscribers
Year (millions) Year (Millions)
1993 16.0 1999 86.0
1994 24.1 2000 109.5
1995 33.8 2001 128.4
1996 44. 2002 140.8
1997 55.3 2003 158.7
1998 69.2 2004 182.1
2. In general how will the upper and lower control limits change if a 2-sigma control chart? Why is it a good idea to use both of them in monitoring the same process?
Purchase this Solution
Solution Summary
The solution contains one problem related to the forecasting using exponential smoothing technique and one problem in the area of control charts.
Solution Preview
1. The forecast for 2005 is 162.01 Millions
(*Please see the Excel and Word file for the calculation and formula*)
2. If a 2-sigma control chart is used instead of a 3-sigma control chart, the upper and lower control limits come closer to the center value or the process ...
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.