Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Power-813-en_uu-Power-813-en
   name	uu-Power-813-en
   section	Inferential Statistics/NHST/Power
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Calculation
   Language	English
   Level	Statistical Literacy

   Question

   Albert is administering a test to test the effect of a treatment. He expects an increase in scores of 2 points. Under normal circumstances, the average score is 12. So he wants to test: H0: $\mu$ = 12 vs. H1: $\mu$ = 14.

   There were 30 people participating in the experiment. Albert tests at $\alpha$ = .10 and assumes that the standard deviation is equal to 3. What is the power of this test?

   
   
   1. TRUE: .9911
   2. FALSE: .9778
   3. FALSE: .6554
   4. FALSE: .7324
   
   
   1. This answer is correct.
   2. This answer is incorrect.
   3. This answer is incorrect.
   4. This answer is incorrect.