A student researcher compares the heights of American students and non-American students from the student body of a certain college in order to estimate the difference in their mean heights. A random sample of 1212 American students had a mean height of 68.468.4 inches with a standard deviation of 2.462.46 inches. A random sample of 1717 non-American students had a mean height of 65.165.1 inches with a standard deviation of 2.962.96 inches. Determine the 98%98% confidence interval for the true mean difference between the mean height of the American students and the mean height of the non-American students. Assume that the population variances are equal and that the two populations are normally distributed. Step 2 of 3: Find the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.
A student researcher compares the heights of American students and non-American students from the student body of a certain college in order to estimate the difference in their
Find the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.
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