Using traditional methods it takes 93 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 150 students and observed that they had a mean of 92 hours. Assume the population variance is known to be 64. Is there evidence at the 0.02 level that the technique performs differently than the traditional method? a) State the null and alternative hypotheses. b)Find the value of the test statistic. Round your answer to two decimal places. c)Specify if the test is one-tailed or two-tailed. d)Find the P-value of the test statistic. Round your answer to four decimal places. e)Identify the level of significance for the hypothesis test. f)Make the decision to reject or fail to reject the null hypothesis.
Using traditional methods it takes 93 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 150 students and observed that they had a mean of 92 hours. Assume the population variance is known to be 64. Is there evidence at the 0.02 level that the technique performs differently than the traditional method?
a) State the null and alternative hypotheses.
b)Find the value of the test statistic. Round your answer to two decimal places.
c)Specify if the test is one-tailed or two-tailed.
d)Find the P-value of the test statistic. Round your answer to four decimal places.
e)Identify the level of significance for the hypothesis test.
f)Make the decision to reject or fail to reject the null hypothesis.
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