The paper “The Pedaling Technique of Elite Endurance Cyclists” (International Journal of Sport Bio mechanics [1991]: 29– 53) reported the following data on single-leg power at a high workload:
a. Calculate and interpret the sample mean and median. x 5 192.571
b. Suppose that the first observation had been 204, not 244. How would the mean and median change?
c. Calculate a trimmed mean by eliminating the smallest and the largest sample observations. What is the corresponding trimming percentage?
d. Suppose that the largest observation had been 204 rather than 244. How would the trimmed mean in Part (c) change? What if the largest value had been 284?

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