The variance of a distribution is defined as the sum of the squared deviations from the mean divided by the number of scores.
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Q38: The F statistic is
A) the ratio of
Q39: The number of participants in a study
Q40: If experimental treatments produce an effect,
A) between-groups
Q41: Approximately 68 percent of the scores in
Q42: If the null hypothesis is true, alpha
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
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