If your study had a power of .80, which of the following statements would be correct?...
If your study had a power of .80, which of the following statements would be correct?
| a. |
There is an 80% chance of committing a Type I error |
|
| b. |
There is a 20% chance of committing a Type I error |
|
| c. |
There is an 80% chance of finding a relationship or difference that actually exists in the real world. |
|
| d. |
There is a .80 probability of correctly failing to reject a true null hypothesis. |
Homework Answers
Answer
we know that
power = 1- probability of type II error
type II error is the probabiliy of failing to reject a false null hypothesis
So,power become the probability of correctly rejecting a false null hypothesis
therefore,only option C is correct answer
option A and B are incorrect because power has nothing to do with type I error
option D is incorrect because power does not reject a true null hypothesis
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