Pulse Rates of Identical Twins A researcher wanted to compare the pulse rates of identical twins to see whether there was any difference. Twelve sets of twins were randomly selected. The rates are given in the table as number of beats per minute. Find the 90% confidence interval for the difference of the average pulse rates of twins. Assume the variables are normally distributed. Let μ be the DMA-HB. Round the answer to at least one decimal place. average of twin A and Twin A Twin B 85 89 Send data to Excel

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