Term
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Definition
| A statement regarding a characteristic of one or more populations |
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Term
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Definition
| A procedure based on sample evidence and probability used to test statements regarding a characteristic of one or more populations |
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Term
| 3 steps in hypothesis testing |
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Definition
1. A statement is made regarding the nature of the population
2. Evidence is collected to test the statement
3. The data are analyzed to assess the plausibility of the statement |
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Term
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Definition
| A statement to be tested; a statement of no change, no effect, or no difference |
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Term
| Alternative hypothesis, H1 or Ha |
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Definition
| A statement that we are trying to find evidence to support |
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Term
| 3 ways to set up the null and alternate hypothesis |
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Definition
1. Two-tailed test
2. Left-tailed test
3. Right-tailed test |
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Term
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Definition
Equal hypothesis versus not equal hypothesis
H0: parameter = some value
H1: parameter not= some value |
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Term
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Definition
Equal versus less than
H0: parameter = some value
H1: parameter < some value |
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Term
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Definition
Equal versus greater than
H0: parameter = some value
H1: parameter > some value |
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Term
| 1. Four outcomes from hypothesis testing |
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Definition
| Reject null when alternative is true |
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Term
| 2. Four outcomes from hypothesis testing |
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Definition
| Do not reject null when null is true |
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Term
| 3. Four outcomes from hypothesis testing |
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Definition
| Reject null when null is true; type I error |
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Term
| 4. Four outcomes from hypothesis testing |
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Definition
| Do not reject null when alternative is true; type II error |
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Term
| Level of significance. alpha |
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Definition
| The probability of making a type I error |
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