Using traditional methods it takes 102 hours to recelve an advanced flying license. A new training technique using Computief Alded instruction (CAA) has been proposed. A researcher used the technique on 290 students and observed that they had a mean of 103 hours. Assume the population standard deviation is known to be 8. Is there evidence at the 0.1 level that the technique lengthens the training time? Step 1 of 6: State the null and alternative hypotheses: