Question

Using traditional methods it takes 107 hours to receive an advanced flying license. A new training technique using Computer Aided Instruction (CAI) has been proposed. A researcher believes the new technique may lengthen training time and decides to perform a hypothesis test. After performing the test on 120 students, the researcher decides to reject the null hypothesis at a 0.10 level of significance. What is the conclusion?

Answer 1

Solution:

First we write the null and alternative hypothesis for given problem.

Null Hypothesis H₀ : = 107 Hours

Alternative Hypothesis : H₁ : >   107 (lengthen training time)

Decision :  reject the null hypothesis at a 0.10 level of significance.

So , conclusion is

At 0.10 level of significance . there is sufficient evidence to support the researcher 's claim that he new technique may lengthen training time