A. There is a linear relationship between weight and length, and model I is most appropriate.
B. There is a linear relationship between weight and length, and model II is most appropriate.
C. There is a nonlinear relationship between weight and length, and model I is most appropriate.
D. There is a nonlinear relationship between weight and length, and model II is most appropriate.
E. There is a nonlinear relationship between weight and length, and model III is most appropriate.
A polling company has been asked to do a poll to see if the proportion of people that would vote
for their candidate has improved since the previous poll, as their analyst suspects. Using p (^) p = the
proportion of all voters that would have supported their candidate in the previous poll, and p (^) c = the
proportion of all voters that would support their candidate in the current poll, which is an
appropriate pair of hypotheses for a significance test?
A. H 0 : p (^) c > P (^) P
H (^) a : p (^) c ≤ P (^) P
B. H 0 : p (^) c < P (^) P
H (^) a : p (^) c > P (^) P
C. H 0 : p (^) c > P (^) P
H (^) a : p (^) c = P (^) P
D. H 0 : p (^) c = P (^) P
H (^) a : p (^) c > P (^) P
E. H 0 : p (^) c = P (^) P
H (^) a : p (^) c ≠ P (^) P
A public health researcher suspected that there would be a relationship between the proportion of
people in a state that engage in binge alcohol use and the proportion of people in the state that
smoke cigarettes. A regression analysis was performed and some of the output is shown below.