A pharmaceutical company needs to know if its new cholesterol drug, Praxor, is effective at lowering cholesterol levels. It believes that people who take Praxor will average a greater decrease in cholesterol level than people taking a placebo. After the experiment is complete, the researchers find that the 4444 participants in the treatment group lowered their cholesterol levels by a mean of 20.720.7 points with a standard deviation of 5.15.1 points. The 3434 participants in the control group lowered their cholesterol levels by a mean of 18.618.6 points with a standard deviation of 1.31.3 points. Assume that the population variances are not equal and test the company's claim at the 0.020.02 level. Let the treatment group bePopulation 1 and let the control group be Population 2.

Step1of3:

State the null and alternative hypotheses for the test. Fill in the blank below.

H0Ha:1=2:12H0:1=2Ha:100000000_2