Complete the following mcq:
1. You complete a hypothesis test using o=.05 and based on the evidence from the sample, your decision is to reject the null hypothesis. which of the following is true?
you have made a type 1 error
you might have made a type 1 error but the probability is less than 5%
you have made a type II error
you have made the correct decision
you complete a hypothesis test using o= .05 and based on the evidence from the sample your decisions to fail to reject the null hypothesis.
2. If the treatment actually does have an effect, which of the following is true?
you have made a type II error
you might have made a type I error, but the probability is only 5% at most
you have made a type I error
you have made the correct decision
3. What is the relationship between the alpha level, the size of the critical region and the risk of type I error?
as the alpha level increases the size of the critical region decreases, and the risk of a type I error decreases
as the alpha level increases, the size of the critical region increases and the risk of a type 1 error decreases
as the alpha level increases the size of the critical region decreases and the risk of a type 1 error increases
as the alpha level increases the size of the critical region increases and the risk of a type I error increases.
4. By selecting a larger alpha level reseacher is
better able to detect a treatment effect
attempting to make it easier to reject Ho
all of these choices are the result of selecting a lager alpha level
increasing the risk of a type I error