Examine the following SPSS output from the heart rate data. Based on 11 degrees of freedom, working to a two-tailed significance value of .05, the critical value for t is 2.201. What can you assume from the output? (The significance value has been omitted on purpose.)
A. The data sets were not significantly different.
B. The data sets were significantly different.
C. The critical value and the t-statistic were too similar and therefore inconclusive.
D. The data sets are most likely normally distributed.
Answer: A
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