a Based on your answers to Exercises 13.20 and 13.21 and the comments at the end of this
Chapter 13, Problem 13.22(choose chapter or problem)
a Based on your answers to Exercises 13.20 and 13.21 and the comments at the end of this section, how would you expect confidence intervals computed using the results of this section to compare with related intervals that make use of the data from only one or two of the samples obtained in a one-way layout? Why? b Refer to part (a). Is it possible that a 95% confidence interval for the mean of a single population based only on the sample taken from that population will be shorter than the 95% confidence interval for the same population mean that would be obtained using the procedure of this section? How?
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