In a study to examine motivational techniques to help adolescent smokers to quit smoking,the null hypothesis states that the intervention will have no effect on this population.The researcher establishes a level of significance of 0.01.When analyzing the data,the researcher concludes that there is a significant difference between subjects receiving the intervention and those who do not.In this study,a Type I error means there is a:
A) 1% chance that the conclusion is wrong.
B) 1% chance that the conclusion is correct.
C) 99% chance that the conclusion is wrong.
D) 99% chance that the null hypothesis is correct.

Question

Quizplus · Accepted Answer

A Type I error occurs when the null hypothesis is rejected when it is actually true. In this case, the null hypothesis is that the intervention will have no effect on adolescent smokers' ability to quit smoking. The researcher has established a level of significance of 0.01. This means there is a 1% chance that the conclusion is wrong, which is a Type I error.

In a Study to Examine Motivational Techniques to Help Adolescent