Determine whether to reject the null hypothesis by looking at the sig value. If the sig value is less than the alpha value, the null hypothesis is rejected. Another way to determine whether to reject the null hypothesis is by looking at the confidence intervals. If 0 is not within these intervals, you can reject the null hypothesis.

Alpha Value: the probability of rejecting the null hypothesis given that it is true; often equal to the p-value

Null Hypothesis: the idea that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error

Alternative Hypothesis: the idea that there is a significant difference between specified populations, any observed difference being due to a changed variable