Give a brief answer, comment, or explanation for each of the following. a. What is...

Give a brief answer, comment, or explanation for each of the following.

a. What is the difference between e₁, e₂, . . . , e_n and the n residuals?

b. The simple linear regression model states that y = α +βx.

c. Does it make sense to test hypotheses about b?

d. SSResid is always positive.

e. A student reported that a data set consisting of n = 6 observations yielded residuals 2, 0, 5, 3, 0, and 1 from the least-squares line.

f. A research report included the following summary quantities obtained from a simple linear regression analysis: