If all else remains equal,which of the following will increase the power of a t test?
A) Lower α.
B) Changing from a one-tail to a two-tail test.
C) Increased sample size.
D) Greater β.

Question

Quizplus · Accepted Answer

Increasing the sample size will decrease the standard error, making it easier to detect a significant difference and increasing the power of the t-test. Lowering alpha will increase the likelihood of a type II error and decreasing power. Changing from a one-tail to a two-tail test will not necessarily increase power but can affect the interpretation of the results. Greater beta indicates a higher likelihood of a type II error and lower power.

If All Else Remains Equal,which of the Following Will Increase