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The t statistic indicates the:
Select one:
a. number of standard deviations a sample is from the population mean.
b. number of standard deviations an individual score is from the sample mean.
c. distance of two sample means from a single population mean.
d. distance of a sample mean from the population mean in terms of estimated standard error.
Do you think it would be justified for people of certain racial or ethnic groups to be subject to additional security checks at airport check points?
What statistical test did the researchers use to determine if there was a statistically significant difference in levels of self-esteem between the boys and the girls?
If a researcher decides to use multiple comparisons in a study with three conditions, what is the probability of a Type I error across these comparisons? Use the Bonferroni adjustment to determine the suggested alpha level.
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You have two unbiased estimates, e 1 and e 2 , of a quantity with variances V 1 and V 2 respectively, and covariance Cov {e1,e 2 } = C. Form a new unbiased estimate:
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