9. 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 S_p
values.

b. (**) Another 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.

Transcribed Image Text:

SAMPLE SAMPLE CUSTOMER ORDERS (HOURS TO SHIP) 1 3 5 21 4 15 9 7 3 6 2 22 16 8 16 11 38 11 25 15 3 9 2 5 17 2 19 4 2 4 45 6 7 18 9 16 18 7 10 1 5 11 10 20 18 1 6 3 18 9