Question
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
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
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