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  3. following data it from a firm producing steel bar and...

Question: following data it from a firm producing steel bar and...

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Problem 6 Following data is from a firm producing steel bar, and shows the relationship between the monthly sales of steel bars and the number of permits for construction. Period onth) 2 3 4 5 6 7 8 9 No. of permits 15 40 20 25 25 15 35 30 (Unita thousand) Sales profit 16 16 100 million won) Assume that the point of construction permit has one month difference from the actual point of construction. (n other words, a firm can start constructing a building only they have permission a month ahead. When the construction starts, thats where this firm gets sales profit) 1. Define an independent variable and a dependent variable. 2. Find a linear regression model. 3. Find the forecasted sales of 10th month.
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