Refer to Exercise 13.78. Suppose that a balanced completely randomized design is to be
Chapter 13, Problem 13.79(choose chapter or problem)
Refer to Exercise 13.78. Suppose that a balanced completely randomized design is to be employed and that prior experimentation suggests that = 20. a How many replications would be required to estimate any treatment (drug combination) mean correct to within 10 with probability .95? b How many degrees of freedom will be available for estimating 2 when using the number of replications determined in part (a)? c Give the approximate half-width of a 95% confidence interval for the difference in mean responses for two treatments when using the number of replications determined in part (a)
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