Air Force Training Program- Case 03 [Type the document subtitle] An Air Force introductory course currently uses a personalized system of instructions in the form of videotapes, from which students learn independently and then are required to pass a test. There is a proposed alternative training program which will involve use of computer-assisted instruction. The scope of the report is to compare the difference between course completion times for the Current Training method and the Proposed Training method and recommend the best training course.
Although, the proposed training method’s mean value of completion time is slightly higher than that of the current training method, we see that the maximum time taken to complete the course using the proposed method is less by 2 hours. We also see that the sample standard deviation for the proposed method is much lower than that of the current method. The negative skewness of both the training method suggests that the median time taken to complete the course is higher than the mean time taken.
From the table we can also see that range for 95% confidence interval for population mean for the proposed method is narrower. This suggests that we have greater confidence that the population mean for proposed method will be within the range specified. The 95% confidence intervals for the standard deviation of both methods do not overlap. Thus we can deduce with 95% confidence that the population standard deviation for the proposed method will be much lower than that of the current method.
On conducting a two-tailed hypothesis test about the population means of the two training methods, it is seen that – there is no statistically significant difference between the average times of course completion in the current method compared to that of the proposed method. (t (102) = -0. 6027, p = 0. 5481) From a two-tailed hypothesis test, conducted to check for difference in the population variance of the two training methods, it can be concluded that the variance of course completion time for the current method is significantly higher than that of the proposed method.(F (60, 60) = 2. 48, p-value = 0. 00058) After analyzing the data, it is recommended that the Air Force training program adopt the proposed training system. As seen in Table1, the maximum time required to complete the course is lower in the proposed method than the current method. It is also seen that there is no significant difference in the average time required to complete the training in either of the methods.
But the variance in the time required for course completion is significantly lower in the proposed training method. Therefore, it can be said that the proposed training method a better system for reducing the difference in course completion time for the students. Data using matched samples would have helped make more conclusive recommendations regarding the two training methodologies. This would have eliminated the variation between the students, since each student would have used the same two training methods.