A political researcher believes that the fraction

p1

of Republicans strongly in favor of the death

penalty is greater than the fraction

p2

of Democrats strongly in favor of the death penalty. He

acquired independent random samples of 200 Republicans and 200 Democrats and found 46

Republicans and 34 Democrats strongly favoring the death penalty. We wish to test at the level

=.05

whether this evidence provides statistical support for the researcher's belief. Which of the following level

1

confidence intervals for

p1p2

is grounds for rejection of the null hypothesis? Note there may be several correct answers; you only need to choose one.

a.) [k1,k2] with k1

b.) (,k] with k<0<

c.) (k1,k2] with

d.) (,k](,k] with 0

e.) [k,)[k,) with k>0