In testing the difference between the means of two normally distributed populations using independent random samples,the correct test statistic to use is the
A) z statistic.
B) t statistic.
C) F statistic.
D) chi-square statistic.
E) None of the other choices is correct.

Question

Quizplus · Accepted Answer

The t statistic is used when comparing the means of two independent samples, especially when the population standard deviations are unknown and the sample sizes are small.

In Testing the Difference Between the Means of Two Normally