Question

you have... (a) 2 samples (b) independent samples (c) involving proportions (d) is a confidence interval what test would you run (number on the calculator sheet/overview sheet)? #9: confidence interval for one population mean (t - interval) $sigma$ unknown #10: hypothesis test (2 - prop z - test) & confidence interval (2 - prop z interval) for two population proportions #11: hypothesis test for paired t - test (t - test on differences) & confidence interval for the differences in means from paired samples (t interval on list of differences) #12: hypothesis test (2 - sample t - test) & confidence interval (2 - sample t interval) for independent samples for two means

Explanation:

Step1: Identify given conditions

We have 2 independent samples.

Step2: Match with test - types

Test #12 is for 2 independent samples for two means.

Answer:

#12: Hypothesis Test (2 - Sample T - Test) & Confidence Interval (2 - Sample T Interval) for Independent Samples for Two Means