4 & 5. Statistics, Quality Assurance and Calibration Methods - Part 1 of 2

4 & 5. Statistics, Quality Assurance and Calibration Methods / Hypothesis Testing (t-Test) / Problem 11

Problem 11

When should an unequal variance t-test be used?

When the sample size is greater than 30.

When comparing paired data.

When the variances of the two populations are different.

When the variances of the two populations are equal.