Further Stats- Quality of tests

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/10

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

11 Terms

1
New cards
Type I error
Ho incorrectly rejected.
2
New cards
Type I error is same as
Significance level of test. Usually small.
3
New cards
Type II error
Ho is incorrectly accepted. Actual value of parameter p is required.
4
New cards
Type II error same as
Acceptance region for true parameter. Usually larger.
5
New cards
Type I error for continuous distribution
Equal to significance level
6
New cards
Size of a test
Probability of rejecting Ho, when true. Same as Type I error.
7
New cards
Power of a test
Probability of rejecting Ho when false. Equal to 1-P(Type II)
8
New cards
Power when correct decisions are being made more often than not
Power > 0.5
9
New cards
What increases power?
Increasing sample size and significance level
10
New cards
Power function of a test
Function of parameter p, which gives probability that test statistic fill fall in critical region of test, if p is true value of parameter.
11
New cards
Which power is better
Test with a higher power is better.