11.Conduct a test to determine whether or not the population proportion of voters in favor of proposal A is greater than 50%. In a random sample of 200 voters, 140 said that they were in favor of this proposal. Compute the test statistic. 1. OZ = 6.17 2. OZ = 19.80 3. OZ = 5.66 4. OZ = 7.07 5. ONone of the above 12.A quality improvement consultant has promised that his techniques will reduce variance in a