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A dataset follows. xi 2 6 9 13 20 yi 7 18 9 26 23 The...

A dataset follows.

xi 2 6 9 13 20

yi 7 18 9 26 23

The estimated regression equation is ˆy= 7.6 + 0.9x, SSE = 127.3, and Σ(xi − ̄x)^2 = 190.

a. What is the value of the standard error of the estimate?

b. Test for a significant relationship by using the t test (α=.05).

Math   Statistics-And-Probability   
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