1. What assumptions about the two populations are necessary in Problem 10.2?
2. Referring to Problem 10.2, construct a 95% confidence interval estimate of the population mean difference between µ1and µ2.
3. Referring to Problem 10.2, if n1= 5 and n2= 4, how many degrees of freedom do you have?
4. Referring to Problem 10.2, if n1= 5 and n2= 4, at the 0.01 level of significance, is there evidence that µ1 µ2?
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