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Using traditional methods, it takes 92 hours to receive a basic flying license. A new license...

Using traditional methods, it takes 92 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 70 students and observed that they had a mean of 93 hours. Assume the standard deviation is known to be 6. A level of significance of 0.05 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places. Enter the value of the test statistic.

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Answer #1

Solution :

Test statistic = z

= ( - ) / / n

= (93 - 92) / 6 / 70

= 1.39

Test statistic = 1.39

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