The degrees of freedom equals the number of scores that are free to vary minus one.
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Q44: Characteristics of a population of scores are
Q45: The absolute mean deviation is an adequate
Q46: Most hypothesis testing is performed using known
Q47: As the level of significance is changed
Q48: Two-tailed tests are more liberal and less
Q50: The standard error of the mean is
Q51: The standard error of the mean is
Q52: The t test is a nonparametric test.
Q53: It is impossible to prove the alternative
Q54: The Mann-Whitney U test can only be
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