Mathematics, 28.06.2020 02:01, Kklove8987
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 12 American students had a mean height of 69.4 inches with a standard deviation of 2.79 inches. A random sample of 17 non-American students had a mean height of 63.3 inches with a standard deviation of 3.22 inches. Determine the 90% 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 1 of 3 : Find the point estimate that should be used in constructing the confidence interval
Answers: 1
Mathematics, 21.06.2019 14:30, mcouil9369
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A student researcher compares the heights of American students and non-American students from the st...
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