Question

using traditional methods it takes 98 hours to receive an advanced driving license. a new training technique using computer aided instruction (cai) has been proposed. a researcher believes the new technique may reduce training time and decides to perform a hypothesis test. after performing the test on 230 students, the researcher fails to reject the null hypothesis at a 0.02 level of significance. what is the conclusion? answer there is sufficient evidence at the 0.02 level of significance that the new technique reduces training time. there is not sufficient evidence at the 0.02 level of significance that the new technique reduces training time.

Explanation:

In hypothesis - testing, failing to reject the null hypothesis means that the data does not provide enough evidence to support the alternative hypothesis. Here, the alternative hypothesis is that the new technique reduces training time. Since the null hypothesis is not rejected at the 0.02 level of significance, there is not enough evidence to claim that the new technique reduces training time.

Answer:

There is not sufficient evidence at the 0.02 level of significance that the new technique reduces training time.