Problem

The sample means corresponding to populations 1 and 2 in Exercise 11.4 are = 83.9....

The sample means corresponding to populations 1 and 2 in Exercise 11.4 are = 83.9.

a. Find a 90% confidence interval for .

b. Find a 90% confidence interval for the difference .

Reference:

Suppose you wish to compare the means of four populations based on independent random samples, each of which contains six observations. Insert, in an ANOVA table, the sources of variation and their respective degrees of freedom.

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Solutions For Problems in Chapter 11

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