[See Steps] A researcher wanted to compare the pulse rates of identical twins to see whether there was any difference. Eight sets of twins were selected.
Question: A researcher wanted to compare the pulse rates of identical twins to see whether there was any difference. Eight sets of twins were selected. The rates are given in the table as number of beats per minute. At a = 0.01, is there a significant difference in the average pulse rates of twins? Find the 99% confidence interval for the difference of the two. Use the P-value method.
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