Consider a binomial experiment with n trials and r successes. To construct a test for a proportion p, what value do we use for the sample test statistic? a) 2r / n
b) (r / n)2
c) n / r
d) r / n

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _