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13. Using traditional methods, it takes 94 hours to receive abasic flying license. A new license training method using ComputerAided Instruction (CAI) has been proposed. A researcher used thetechnique with 210 students and observed that they had a mean of 95hours. Assume the standard deviation is known to be 5. A level ofsignificance of 0.05 will be used to determine if the techniqueperforms differently than the traditional method. Is theresufficient evidence to support the claim that the techniqueperforms differently than the traditional method?

What is the conclusion?

A. There is not sufficient evidence to support the claim thatthe technique performs differently than the traditional method.

B. There is sufficient evidence to support the claim that thetechnique performs differently than the traditional method.

14. Using traditional methods it takes 90 hours to receive anadvanced driving license. A new training technique using ComputerAided Instruction (CAI) has been proposed. A researcher believesthe new technique may reduce training time and decides to perform ahypothesis test. After performing the test on 190 students, theresearcher decides to reject the null hypothesis at a 0.02 level ofsignificance.

What is the conclusion?

A. There is sufficient evidence at the 0.020 level ofsignificance that the new technique reduces training time.

B. There is not sufficient evidence at the 0.02 level ofsignificance that the new technique reduces training time.