Lt x-bar1 117 x-bar2 90 s1 108 s2 114 n1 50 n2 50

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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 Î¼. 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?

Reference no: EM13635950

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