The linear regression equation is y = 0.50x - 0.36
<h3>How to determine the linear regression equation?</h3>
The proper format of the table of values is:
Number of tv commercials, x: 13 6 12 14 17
Car sales, y (in hundreds): 3 2 8 9 7
Next, we determine the linear regression equation using a graphing calculator.
From the graphing calculator, we have the following summary:
- Sum of X = 62
- Sum of Y = 29
- Mean X = 12.4
- Mean Y = 5.8
- Sum of squares (SSX) = 65.2
- Sum of products (SP) = 32.4
The regression equation is the calculated as:
y = bx + a
Where
b = SP/SSX = 32.4/65.2 = 0.49693
a = MY - bMX = 5.8 - (0.5*12.4) = -0.36196
Substitute these values in y = bx + a
y = 0.49693x - 0.36196
Approximate
y = 0.50x - 0.36
Hence, the linear regression equation is y = 0.50x - 0.36
Read more about linear regression equation at:
brainly.com/question/25987747
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