Which of the following tests is considered to be more powerful? ...

[HudsonKB16]

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.

[millet]

Answer to Question 1

a

Answer to Question 2

b

[HudsonKB16]

Thank you

[millet]

No problem