Using traditional methods it takes 98 hours to receive an advanced driving license. A new training technique using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique on 120 students and observed that they had a mean of 96 hours. Assume the population variance is known to be 64. Is there evidence at the 0.05level that the technique reduces the training time?Step 1 of 6:State the null and alternative hypotheses.