What effect does reducing the value of the significance level from 0.05 to 0.01
ID: 3337850 • Letter: W
Question
What effect does reducing the value of the significance level from 0.05 to 0.01 have on the following?
the probability of committing a Type I error
The probability of committing a Type II error
The power of a test
The sample size
Lowers
Increases
No effect
- A. B. C.the probability of committing a Type I error
- A. B. C.The probability of committing a Type II error
- A. B. C.The power of a test
- A. B. C.The sample size
A.Lowers
B.Increases
C.No effect
Explanation / Answer
If we reduce the value of the significance level,
The probability of committing a Type I error decreases (as it is directly related).
The probability of committing a Type I error increases
The power of a test decreases
The sample size will not change if one simply changes significance level. The vice versa is not true, however.
So there is no effect.