Which of the following tests is considered to be more powerful?
a. A one-tailed test
b. A two-tailed test
c. Neither; they are both equally statistically powerful
d. Which is more powerful depends on the sample size
Question 2
What happens to the probability of committing a Type I error if the level of significance is changed from = .01 to = .05?
a. The probability of committing a Type I error will decrease.
b. The probability of committing a Type I error will increase.
c. The probability of committing a Type I error will remain the same.
d. The change in probability will depend on your sample size.
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