You have a sample of 4 pairs from two populations. The mean of the paired differences is 10 and the standard deviation of the differences is 5. Test the hypothesis, at the 5% level of significance,...

You have a sample of 4 pairs from two populations. The mean of the paired differences is 10 and the standard deviation of the differences is 5. Test the hypothesis, at the 5% level of significance, that the population means are the same. State your conclusion as a sentence including the test statistic and the critical value.