(5) Hypothesis test for Two Population Means Question: Is the PH level of rainwater near Detroit, Michigan significantly less than the PH level of rainwater near El Paso, Texas? 1" population: Detroit, Michigan rainwater Random Sample information LI Twelve (12) rain dates in Detroit were randomly selected and the PH levels measured: 4.40 4.45 4.64 4.35 4.54 4.75 4.22 4.40 4.49 4.63 4.69 4.36 Data check mean-4.51 24 population: El Paso, Texas rainwater Random Sample information L2 Ten (10) rain dates in El Paso were randomly selected and the pH levels measured: 5.22 4.69 4.46 5.10 4.65 4.25 5.22 5.14 4.76 4.71 Data check mean=4.82 Step 1 has been completed for you. Step 1. State the null Hypothesis Ho: 1 = #2 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. Draw, 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 correctly plot and label the test statistic on your graph in Step 3. Write the Conclusion (two statements)