A random sample of 10 lawyers has a mean BDI score of 8, with a standard deviation of 2, a random sample of 10 engineers has a mean BDI score of 5, with a standard deviation of 2. What is the 95% confidence interval around mLawyers – mEngineers?
[–1.25, –1.75]
[1.25, 1.75]
[1, 5]
[1.12, 4.88]
