With 20 pairs of interval scores, the paired t has 38 degrees of freedom.
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Q58: With ratio data, calculating the t ratio
Q59: With any t test, independent or paired,
Q60: With a within-subjects ANOVA, a significant difference
Q61: With interval data and a two-group, matched-subjects
Q62: When there is a correlation across the
Q64: When analyzing data from a repeated-measures design,
Q65: The lower the value of beta, the
Q66: An F ratio may never be used
Q67: The paired t may only be applied
Q68: The power of a test is equal
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