Phoenix Lumber Company uses the number of construction permits issued to help estimate demand (sales). The firm collected the following data on annual sales and number of construction permits issued in its market area: No. of Construction Sales Year Permits Issued (000) (1,000,000) 2003 6.50 10.30 2004 6.20 10.10 2005 6.60 10.50 2006 7.30 10.80 2007 7.80 11.20 2008 8.20 11.40 2009 8.30 11.30 (a) Which variable is the dependent variable and which is the independent variable? (b) Determine the estimated regression line. (c) Calculate the coefficient of determination. Give an economic interpretation to the value obtained.

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Q 3.
(A)
Phoenix Lumber Company uses the number of construction permits issued to help estimate demand
(sales). The firm collected the following data on annual sales and number of construction permits
issued in its market area:
No. of Construction
Sales
Year
Permits Issued (000)
(1,000,000)
2003
6.50
10.30
2004
6.20
10.10
2005
6.60
10.50
2006
7.30
10.80
2007
7.80
11.20
2008
8.20
11.40
2009
8.30
11.30
(a)
Which variable is the dependent variable and which is the independent variable?
(b)
Determine the estimated regression line.
(c)
Calculate the coefficient of determination. Give an economic interpretation to the value
obtained.
(d) Suppose that 8,000 construction permits are expected to be issued in 2010. What would
be the point estimate of Phoenix Lumber Company's sales for 2010?
Transcribed Image Text:Q 3. (A) Phoenix Lumber Company uses the number of construction permits issued to help estimate demand (sales). The firm collected the following data on annual sales and number of construction permits issued in its market area: No. of Construction Sales Year Permits Issued (000) (1,000,000) 2003 6.50 10.30 2004 6.20 10.10 2005 6.60 10.50 2006 7.30 10.80 2007 7.80 11.20 2008 8.20 11.40 2009 8.30 11.30 (a) Which variable is the dependent variable and which is the independent variable? (b) Determine the estimated regression line. (c) Calculate the coefficient of determination. Give an economic interpretation to the value obtained. (d) Suppose that 8,000 construction permits are expected to be issued in 2010. What would be the point estimate of Phoenix Lumber Company's sales for 2010?
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