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| statistical null hypothesis |
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Definition
| specific claim about a population parameter, usually assumes the negative or skeptical point of view (there is no change, unrelated) |
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| represents all other possible parameters except the one the null is stating |
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| measurable factor that defines or helps define a population |
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| inference about a population parameter from sample data |
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| specific number or quantity calculated from the data that is used to compare the data gathered to the expected values based on the null |
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| calculated from the estimate, it is the distribution of a sampling statistic (e.g. mean) if calculated from many different samples many times |
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| is the sampling distribution of outcomes for a test statistic that assumes that the null hypothesis is true |
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| probability of obtaining data under the null hypothesis |
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| threshold for accepting or rejecting the null based on the p-value (usually .05) if it is below .05, you reject the null |
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| mistakenly rejecting a true null hypothesis. The significance level is the probability of a type 1 error (.05 means 1 in 20 chance, which is acceptable) |
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| fail to reject a false null, study with a low probability of type 2 error is said to have a high power. |
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| probability that a random sample will lead to rejection of a false null hypothesis |
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| In what order do you list these definitions? |
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1.null hypothesis 2. alternative hypothesis
3. parameter 4. estimate 5. test statistic
6. sampling distribution 7. null distribution
8. p-value 9. significance level
10. type 1 error 11. type 2 error 12. power |
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