To determine if a regression model is useful, the
a. fit (or prediction) should be bigger, on average, than error
b. coefficients (the b's) should be clearly different from zero
c. p value should be greater than the F-test value
d. all of the above
e. both a and b
Question 2
Analyses that test hypotheses and models involving multiple (three or more) variables or sets of variables are referred to as _____ statistical analyses.
Fill in the blank(s) with correct word
