Consider a sample x1, x2, . . . , xn and suppose that the
Chapter 1, Problem 1.78(choose chapter or problem)
Consider a sample x1, x2, . . . , xn and suppose that the values of , s2 , and s have been calculated. a. Let yi xi for i 1, . . . , n. How do the values of s2 and s for the yis compare to the corresponding values for the xis? Explain. b. Let zi (xi )/s for i 1, . . . , n. What are the values of the sample variance and sample standard deviation for the zis?
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