(Solution) - Ten customers per hour were asked by the cashier at -(2025 Original AI-Free Solution)

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Ten customers per hour were asked by the cashier at Stanley?s Deli if they liked their meal, and the fraction that said ?no? are shown below, for a twelve-hour period.

For the data shown above, find
a. P.
b. ?P.
c. The 3-sigma UCL and LCL.
d. Does customer satisfaction at Stanley?s appear to be in statistical control? How could we improve theanalysis?