Correct 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 49 participants in the treatment group lowered their cholesterol levels by a mean of 22.9 points with a standard deviation of 4.4 points. The 35 participants in the control group lowered their cholesterol levels by a mean of 20.9 points with a standard deviation of 2.5 points. Assume that the population variances are not equal and test the company's claim at the 0.05 level. Let the treatment group be Population 1 and let the control group be Population 2. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places