You Conduct a T Test for Independent Means and Reject

question 79

Multiple Choice

You conduct a t test for independent means and reject the null hypothesis. This means that:

• A)the samples were from populations that were actually dependent rather than independent
• B)the variance of one sample is so much larger than the variance of the other sample that you decide that the variances of the parent populations must not have been the same
• C)the mean of one sample is so far from the mean of the other sample that you decide the samples must come from populations with different means
• D)the mean of one sample is statistically the same as the mean of the other sample, so they probably come from populations with equal means

---

Definitions:

Independent Variable

A variable that is manipulated to observe its effect on a dependent variable in an experiment.

Outcome Variable

The variable that is the result of an experiment or study, often measured to assess the effect of a treatment.

Two-Way ANOVA

A statistical test used to determine the effect of two nominal predictor variables on a continuous outcome variable, testing for interaction and main effects.

Factorial ANOVA

A statistical test used to determine the effect of two or more independent variables on a dependent variable at the same time, often used to analyze the interaction between factors.