An IQ test was given to a group of gifted 5th graders to determine if their IQ score is significantly higher than 5th graders in general. When given to 5th graders in general, the test has a mean of 100 with a standard deviation of 15. The gifted 5th graders had a mean of 111.60 on their IQ test with a standard deviation of 6.97. The z-score= 4.24 (p-value < .00001.) should the null hypothesis be rejected?