Question

Fertilizer (kg)	Yield (hundreds of kg)
4	3.0
6	5.5
10	9.5
12	9.0

a.) Is there a linear relationship between fertilizer & crop yield?

b.) What is the estimated regression line?

c.) Is it a good model?

d.) Explain the value of the slope, y-int and R2.

e.) If you used 8 kg of fertilizer, how large a crop yield would you expect?

Detailed calculations would be appreciated.

Answer 1