Joe took two different tests with the class statistics shown.
On which test did Joe perform relatively better?
- Acheck_circle
Test 1 (z = 1.6 vs 1.5)
- B
Test 2 because higher raw score
- C
Test 2 (z = 1.6 vs 1.5)
- D
Same performance — both above mean
Explanation
Test 1 z = (88−80)/5 = 1.6. Test 2 z = (96−90)/4 = 1.5. Joe did relatively better on Test 1.