Re: Salaries and gender
Include in your list of references on salary differences and gender the article by M. H. Birnbaum, Relationships among models of salary bias, American Psychologist, 1985, July, 862-866. ~~~ Karl L. Wuensch, Department of Psychology, East Carolina University, Greenville NC 27858-4353 Voice: 252-328-4102 Fax: 252-328-6283 mailto:[EMAIL PROTECTED] http://core.ecu.edu/psyc/wuenschk/klw.htm = Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =
RE: Student's t vs. z tests
If you knew the population SD (not likely if you are estimating the population mean), you would have more power with the z statistic (which requires that you know the population SD rather than estimating it from the sample) than with t. -Original Message- If I understand correctly the t test, since it takes into account degrees of freedom, is applicable whatever the sample size might be, and has no drawbacks that I could find compared to the z test. Have I misunderstood something? Mark = Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at http://jse.stat.ncsu.edu/ =
