# Using traditional methods, it takes 97 hours to receive an advanced flying license. A new training technique using Computer Aided Instruction (CAI)…

Using traditional methods, it takes 97 hours to receive an advanced flying 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 98 hours. Assume the population standard deviation is known to be 7. 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.

Step 2 of 6: Find the value of the test statistic. Round your answer to two decimal places.

Step 3 of 6: Specify if the test is one-tailed or two-tailed.

Step 4 of 6: Find the P-value of the test statistic. Round your answer to four decimal places

Step 5 of 6: Identify the level of significance for the hypothesis test.

Step 6 of 6: Make the decision to reject or fail to reject the null hypothesis.