What does a negative t-statistic suggest?
A) The stomach cancer mean was subtracted from the lung cancer mean.
B) The lung cancer mean was subtracted from the stomach cancer mean.
C) It is impossible to tell as SPSS randomly orders the numbers.
D) None of the above.

Question

Quizplus · Accepted Answer

A negative t-statistic suggests that the group being compared has a mean that is lower than the other group. In this case, since the lung cancer mean was subtracted from the stomach cancer mean, a negative t-statistic would suggest that the lung cancer group has a lower mean than the stomach cancer group. Choice A suggests the opposite direction of subtraction, and choice C is not relevant as SPSS does not randomly order numbers in t-tests. Choice D is incorrect as there is a clear answer to this question.

What Does a Negative T-Statistic Suggest