Question: Leah s Toys guarantees to ship customer orders in 24 hours

Leah's Toys guarantees to ship customer orders in 24 hours or less. The following chart contains results for five samples of nine customer orders each:


a. Based on these results, estimate the p and Sp values.
b. A student comments, "Time is a continuous variable. We should really be looking at the X and R values." Do you agree or disagree? Explain your rationale.


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  • CreatedApril 10, 2015
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