James Inc. is a mid-sized manufacturer of residential water heaters. Sales have grown during the last several years, and the company's production capacity needs to be increased. The company's management wonders if national housing starts might be a good indicator of the company's sales: National James Inc Housing Starts (millions) Annual Sales Year (millions of dollars) I 6.2 57 2 5.1 59 3 6.5 65 4 7.9 78 5 6.3 72 6 7.4 80 7 7.0 86 a. Develop a simple linear regression analysis between James Inc' sales and national housing starts. Forecast James Inc' sales for the next two years. The National Home Builders Association estimates that national housing starts will be 7.1 million and 8.0 million for the next two years. b. What percentage of variation in James Inc' sales is explained by national housing starts? c. Would you recommend that James Inc management use the forecast from Part a to plan facility expansion? Why or why not? What could be done to improve the forecast?

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James Inc. is a mid-sized manufacturer of residential water heaters. Sales have grown during
the last several years, and the company's production capacity needs to be increased. The
company's management wonders if national housing starts might be a good indicator of the
company's sales:
National
James Inc
Housing Starts
(millions)
Annual Sales
Year
(millions of dollars)
I
6.2
57
2
5.1
59
3
6.5
65
4
7.9
78
5
6.3
72
6
7.4
80
7
7.0
86
a. Develop a simple linear regression analysis between James Inc' sales and national housing
starts. Forecast James Inc' sales for the next two years. The National Home Builders
Association estimates that national housing starts will be 7.1 million and 8.0 million for the
next two years.
b. What percentage of variation in James Inc' sales is explained by national housing starts?
c. Would you recommend that James Inc management use the forecast from Part a to plan
facility expansion? Why or why not? What could be done to improve the forecast?
Transcribed Image Text:James Inc. is a mid-sized manufacturer of residential water heaters. Sales have grown during the last several years, and the company's production capacity needs to be increased. The company's management wonders if national housing starts might be a good indicator of the company's sales: National James Inc Housing Starts (millions) Annual Sales Year (millions of dollars) I 6.2 57 2 5.1 59 3 6.5 65 4 7.9 78 5 6.3 72 6 7.4 80 7 7.0 86 a. Develop a simple linear regression analysis between James Inc' sales and national housing starts. Forecast James Inc' sales for the next two years. The National Home Builders Association estimates that national housing starts will be 7.1 million and 8.0 million for the next two years. b. What percentage of variation in James Inc' sales is explained by national housing starts? c. Would you recommend that James Inc management use the forecast from Part a to plan facility expansion? Why or why not? What could be done to improve the forecast?
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