Using traditional methods it takes 101 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 140 students and observed that they had a mean of 102 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 2 of 6 : Find the value of the test statistic. Round your answer to two decimal places.
Using traditional methods it takes 101 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 140 students and observed that they had a mean of 102 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 2 of 6 : Find the value of the test statistic. Round your answer to two decimal places.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Using traditional methods it takes 101 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 140 students and observed that they had a mean of 102 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 2 of 6 :
Find the value of the test statistic. Round your answer to two decimal places.
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