stats test 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what is the mean of z score distribution | 0
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| what is the standard deviation of z score distribution | 1
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| under what conditions will our distribution be normal? | as the sample size increases, the shape of the distribution becomes more like the normal curve
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| calculate z-scores |
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| what information effects standardized error? | sample size, variability
the larger the sample size, the smaller the standard deveiation of the distribution of means-standard error
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| 6 steps of hypothesis testing 1.identify the pouplations, distribution&assumptions then choose the appropriate hypothesis test 2.state the null&research hypotheses in words&symbolic notation 3.deturmine the characteristics of the comparison distributio | 4.deturmine the critical values or cutoffs that indicate the points beyond which we will reject the null hypotheis
5.calculate the test statistic
6.decide whether to reject or fail to reject the null hypothesis
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