1. Fitting a straight line to a set of data yields the following prediction line:

Y=2+5x

1. Interpret the meaning of the y intercept, b0
2. Interpret the meaning of the slope, b1
3. Predict the value of y for x= 3

1. If the values of x in problem range from 2 to 25, should you use this model to predict the mean value of y when x =
2. 3 ?
3. -3 ?
4. 0 ?
5. 24 ?

1. Fitting a straight line to a set of data yields the following prediction line:

Y = 16 - .05x

1. Interpret the meaning of y intercept, b0
2. Interpret the meaning of slope, b1
3. Predict the value for y when x = 6

1. How do you interpret a coefficient of determination, r2 = 0.80?

1. If SSR = 36 and SSE = 4 determine SST and compute the coefficient r2 and interpret its meaning.

1. If SSR = 66 and SST = 88 compute the coefficient r2 and interpret its meaning.

1. If SSE = 10 and SSR = 30 determine SST and compute the coefficient r2 and interpret its meaning

1. If SSR = 120, why is it impossible for SST to = 110?