Assignment: In your initial post, describe a situation when you compared two var

Question

Assignment: In your initial post, describe a situation when you compared two variables and calculated the slope of their linear regression line. For example, you may have said that packages cost $5 to ship plus $1.50 per additional item.

My Example: In our business, I noticed that sales for technology related promotional products and amount spent on TV advertising are linearly related. While the numbers are fictional, When we spent $3000.00 on television advertising, sales for the product were $127,000.00 and when $4000.00 was spent on television advertising, sales for the product were $152,500.00 I can't figure out the equation and solve

Explanation / Answer

Let the equation be

Sales = m*advertising +n

When advertising = $3000 then sales = $127000

127000 = 3000m+n

When advertising = $4000 then sales = $152500

152500 = 4000m+n

we get m= 25 and n = $52000

So equation is Sales = 25*Advertising +52000

So slope is 25

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