Question

Using traditional methods, it takes 11.8 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 13 students and observed that they had a mean of 11.9 hours with a standard deviation of 1.2. A level of significance of 0.1 will be used to determine if the technique performs differently than the traditional method. Assume the population distribution is approximately normal. State the null and alternative hypotheses.

Answer 1

To Test :-

H0 :-  

H1 :-  

Test Statistic :-


t = 0.3005

Test Criteria :-
Reject null hypothesis if


Result :- Fail to reject null hypothesis

Decision based on P value
P - value = P ( t > 0.3005 ) = 0.7689
Reject null hypothesis if P value <    level of significance
P - value = 0.7689 > 0.1 ,hence we fail to reject null hypothesis
Conclusion :- Fail to reject null hypothesis

There is insufficient evidence to support the claim that the technique performs differently than the traditional method.