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the hypothesis where the sample mean of the tested variable will significantly differ from the population mean and that differences found are due to systematic changes from the manipulation
2
The decision is not to reject the null hypothesis when, in fact, the null hypothesis is false
3
This calculation shows the strength of the distance of how far the sample mean has moved after it has been affected by a manipulation
4
The decision is to reject the null hypothesis when, in fact, the null hypothesis is true
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the probability that an event will happen purely by chance assuming the null hypothesis is true
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a statement about the value of a population parameter
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the level used by the researcher to make the decision of which data is significantly different
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the probability of a test to reject the null hypothesis
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the one of two hypotheses we use in research that states that the obtained sample mean will not significantly differ or the mean value will not change with a manipulation
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