Since p (.04) < a (.05), p < α, do we accept or reject the null hypothesis?

True or False: Sigma represents the standard deviation of a population?

For comparing the means of two separate groups, which is the best test?

What are levels of measurement?

True or False: The Null Hypothesis is a statement there is no significant difference or effect in the research observations.

What is a Parameter?

True or False: The p-value is a proportion. If your p-value is 0.05, it means that 5% of the time, you would observe a test statistic at least as extreme as the one you found if the null hypothesis were true.

What does a p-value represent in statistical tests?

True or False. When p > α, you should fail to reject the Null hypothesis.

True or False. The divisor for the standard deviation of a sample is n-1?