For each of the following situations, identify the correct statistic and procedure. Select one response for each line, or 3 responses for each question. (i) Testing whether or not a sample of test scores come from a population whose mean is 50 and whose standard deviation is 5. a. A confidence interval or a hypothesis test b. A one sample, two sample, or paired data procedure c. A z or a t statistic. (ii) Estimating the mean difference in scores on a pretest and posttest for a sample of students.
a. A confidence interval or a hypothesis test
b. A one sample, two sample, or paired data procedure
c. A z or a t statistic