Further Stats- Quality of tests
0.0(0)
Studied by 5 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/10
Earn XP
Last updated 7:10 PM on 6/6/23
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
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.
