Shared Flashcard Set

Details

AP Stat Ch 10
Vocabulary
8
Mathematics
12th Grade
04/03/2012

Additional Mathematics Flashcards

 


 

Cards

Term
Hypothesis
Definition
A claim about the value of a population characteristic.
Term
Null hypothesis, Ho
Definition
The hypothesis initially assumed to be true. Population characteristic = hypothesized value
Term
Alternative hypothesis, Ha
Definition
A hypothesis that specifies a claim that is contradictory to Ho and is judged the more plausible claim when Ho is rejected.
Term
Type I Error
Definition
Rejection of Ho when Ho is true, denoted by alpha.
Term
Type II Error
Definition
Failure to reject Ho when Ho is false, denoted by beta.
Term
Test Statistic
Definition
The quantity computed from sample data and used to make a decision between Ho and Ha.
Term
P-Value
Definition
The probability, computed assuming Ho to be true, of obtaining a value of the test statistic at least as contradictory to Ho as what actually resulted. Ho is rejected if P-Value is less than or equal to alpha and not rejected if P-value is greater than alpha. (alpha is the significance level.)
Term
Power
Definition
The power of a test is the probability of rejecting the null hypothesis. Power is affected by the size of the difference between the hypothesized value and the true value, the sample size, and the significance level.
Supporting users have an ad free experience!