Homework Answers
b)
| Least square line equation: ŷ =17.949+-0.034*x |
c)
| correlation r='Sxy/(√Sxx*Syy) = | -0.5033 | |
No
d)
| predicted val=17.949+10*-0.034= | 17.61 | |
| predicted val=17.949+70*-0.034= | 15.57 | |
f)
| predicted val=17.949+200*-0.034= | 11.15 | |
h)slope =-0.034
decreases by 0.034
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