<s>[INST] An experiment consisted of rolling a die 100 times and recording the number of times each number (1 through 6) was rolled. In this experiment, the recorded data was as follows: 18 ones, 21 twos, 15 threes, 11 fours, 16 fives, and 19 sixes. Is there enough evidence to conclude that the die is unfair?[/INST]