In: Statistics and Probability
The owner of Maumee Ford-Mercury-Volvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year.
Car Age (years) Selling price
1 9 11.6
2 5 10.0
3 12 3.2
4 15 3.7
5 7 7.0
6 6 12.5
7 8 7.8
8 13 8.4
9 12 8.4
10 15 4.8
11 4 9.2
12 4 7.3
a) Determine regression equation?
a=
b=
b) Estimate the selling price for 8 years old car
c) Interpret the regression equation
There is way to find in excel formula to find the regression equation please help me on that