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The probability of a Type II error |
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The probability of Type 1 Error |
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Definition
A test that rejects extreme outcomes in either tail of the distribution |
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A specific distribution having a characteristic bell shaped form |
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The statistical hypothesis tested by the statistical procedure; usually a hypothesis of no difference or no relationship |
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Definition
A test that rejects extreme outcomes in one specified tail of the distribution. |
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The probability that a particular result would occur by chance if Hknot is true; the exact probability of a type I error. |
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Definition
Numerical values summarizing population data |
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Definition
Set of actual observations; subset of the population |
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A sample in which each member of the population has an equal chance of inclusion |
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The distribution of a statistic over repeated sampling from a specified population |
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Variability of a statistic from sample to sample due to chance |
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Definition
Definition of probability in terms of personal subjective belief in the likelihood of an outcome |
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Definition
A test that rejects extreme outcomes in either tail of the distribution |
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Definition
The error of rejecting H knot when it is true |
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Definition
The error of not rejective Hknot when it is false |
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Definition
Number of standard deviations above or below the mean |
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Definition
Complete set of events in which you are interested |
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Variability of a statistic from sample to sample due to chance |
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Definition
A systematic procedure for determining whether the results of an experiment provide support for a particular theory or practical innovation. |
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Term
Random Assignment Model of HT |
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Definition
No assumptions are made about relating the outcome back the population. |
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Term
Random Sampling Model of HT |
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Definition
Derived from idea that the sample is representative of a larger population |
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Definition
Defined by the researcher in terms of behavior to be examined and represents the random behavior of any group in the absence of any treatment having been imposed on the members of the population. |
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Assumed to be representative of the Population, therefore PRIOR to imposing experimental procedure, also reflects random behavior. |
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Will not differ from the population (Symbols) |
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Definition
Will differ from the population; non-directional (Symbols) |
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Definition
FAIL TO REJECT THE NULL; SUSPEND JUDGEMENT |
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What does it mean when you fail to reject the null? |
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Definition
Nothing systematic is happening in data; |
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Definition
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What does it mean when you reject the null? |
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Definition
Something in the data represents a systematic change |
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