Vol: 37 Page: 125

Authors:
Joanna Tarasińska

Title:
 Power comparison of four tests in Behrens-Fisher problem

Language: English

Keywords:
Behrens-Fisher problem
testing hypothesis
testing equality of means
power comparison
unequal variances

Summary:
The problem of testing the equality of means from two independent normal populations with unknown different variances is known as Behrens-Fisher problem. In the paper the powers of four tests are compared: Student’s t test, Welch-Satterthwaite test, Saxena-Srivastava test and the test combined of F test for equality of variances and Student’s t or Welch- Satterthwaite according to its result.

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