CSU Confidence Interval Estimate of Difference BW Population Means R Script Question – Question Description
I’m working on a r multi-part question and need the explanation and answer to help me learn.
Two independent random samples have been selected from two populations for which the population standard deviations are unknown. For the first sample, n1 = 32,
= -186, and s1 = 21; for the second sample, n2 = 27,
= -198, and s2 = 18.
Find the 95% confidence interval estimate of the difference between two population means, and use the (n1 + n2 – 2) expression for the degrees of freedom.
Explain your work, along with your screenshots
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