Finally, you will notice in each of the instances presented that the form of the solution method will be very similar to the forms we used in creating confidence intervals. The difference is that for hypothesis testing we assume the value in the middle and test to see whether the sample statistic is in one of the tails so that we can reject rather than with confidence intervals we assume as sample statistic is in the middle and then use that sample to create boundaries within which the theoretical population statistic must like with high confidence.