Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the given sample sizes and numbers of successes to find the z test statistic for the hypothesis test.
In a vote on the Clean Water bill, 46% of the 205 Democrats voted for the bill while 47% of the 230 Republicans voted for it.
Choose best answer
a. z = -0.230
b. z = -0.125
c. z = -0.209
d. z = -0.178
In a vote on the Clean Water bill, 46% of the 205 Democrats voted for the bill while 47% of the 230 Republicans voted for it.
Choose best answer
a. z = -0.230
b. z = -0.125
c. z = -0.209
d. z = -0.178