Question: Exercise 9 uses = 189 lb, which is based on Data Set 1 Body Data in Appendix B. Repeat Exercise 9 using =

Exercise 9 uses μ = 189 lb, which is based on Data Set 1 "Body Data" in Appendix B. Repeat Exercise 9 using μ = 174 lb (instead of 189 lb), which is the assumed mean weight that was commonly used just a few years ago. What do you conclude about the effect of using an outdated mean that is substantially lower than it should be?

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