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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
EXERCISE 2A–2 Least-Squares Regression [LO3, LO8]
One of Varic Company’s products goes through a glazing process. The company has observed glazing costs as follows over the last six weeks:
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Â
|
1 . . . . . . . . .   . |
8 |
$270 |
|
2 . . . . . . . . .   . |
5 |
$200 |
|
3 . . . . . . . . .   . |
10 |
$310 |
|
4 . . . . . . . . .   . |
4 |
$190 |
|
5 . . . . . . . . .   . |
6 |
$240 |
|
6 . . . . . . . . .   . |
9 |
$290 |
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For planning purposes, the company’s management wants to know the amount of variable glazing cost per unit and the total fixed glazing cost per week.
Required:
1.      Using the least-squares regression method, estimate the variable and fixed elements of the glazing cost.
2.      Express the cost data in (1) above in the form Y = a + bX.
3.      If the company processes seven units next week, what would be the expected total glazing cost?
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