Hypothesis test for Two Population Means Question Is the PH level of rainwater near Houston, Texas significantly greater than the pH level near Chicago, Illinois? 1's population: Houston rainwater Random Sample information LI Twelve (12) rain dates in Texas were randomly selected and the pH levels measured: 4.69 5.10 5.22 4.46 4.93 4.65 5.22 4.76 4.25 5.14 4.11 4.71 Mean = 4.77 pH level 2nd population: Chicago rainwater Random Sample information L2 Fourteen (14) rain dates in Illinois were randomly selected and the pH levels measured: 4.40 4.69 4.22 4.64 4.54 4.35 4.69 4.40 4.75 4.63 4.45 4.49 4.36 4.52 Mean = 4.509285714 PH level Step 1 has been completed for you. Step 1. State the null Hypothesis Ho: #1 = Hz Do Steps 2-4 and write the Conclusion Step 2. State the alternative Hypothesis Hi: ? Which type of test? Right-tailed / Left-tailed / Two-tailed test Step 3. Correctly graph, shade, and label tick marks for the Standard Normal Curve. Use Level of Significance = .05 Step 4. Are the random sample means Unusual under assumption of the null hypothesis? Make sure to plot and label the correct test statistic on your graph in Step 3 Write the Conclusion (two statements)