null hypothesis

Suppose that, for a t-test, your computed value for   t is +3.28. The critical value of t is +2.048.   Explain what this means. Do you reject the null hypothesis or not? Now   suppose that you have 28 degrees of freedom and are using a two-tailed   (nondirectional) test. Draw a simple figure to illustrate the   relationship between the critical and the computed values of   t for this result.