In: Statistics and Probability
Does the amount of hazardous material absorbed by the bodies of hazardous waste workers depend on gender? You want to test the hypotheses that the amount absorbed by men (group 1) is different from the amount absorbed by women (group 2). A random sample of 212 male workers and 114 female workers showed an average lead absorption in the blood of 12.59 (SD = 1.897) and 12.75 (SD = 0.621), respectively (measured in micrograms/deciliter). Assuming that the population standard deviations are the same, perform a two independent samples t-test on the hypotheses Null Hypothesis: μ1 = μ2, Alternative Hypothesis: μ1 ≠ μ2. What is the test statistic and p-value of this test?
Question 14 options: 1) Test Statistic: -0.875, P-Value: 1.8089
2) Test Statistic: -0.875, P-Value: 0.3822
3) Test Statistic: -0.875, P-Value: 0.1911
4) Test Statistic: -0.875, P-Value: 0.8089
5) Test Statistic: 0.875, P-Value: 0.3822