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Let x-bar1 = 117, x-bar2 = 90, s1 = 10.8, s2 = 11.4, n1 = 50, n2 = 50. Find a 95% confidence interval for the difference in the values of μ. For the following, use 3 decimal places.
Using the conservative degrees of freedom, what is the value of tdf, 0.975 for this interval?
What is the lower limit for the 95% confidence interval for the difference?
What is the upper limit for the 95% confidence interval for the difference?
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