Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of ret
urns were 10, 9, 11, 7, 3, 12, 8, 4, 6, and 11. Find the standard deviation of the sampling distribution for the p-bar chart.
1 answer:
Answer:
Standard Deviation = 0.0273
Step-by-step explanation:
P = Total number of returns / (Sample * Timetaken)
= 81 / (100 * 10)
= 0.081
Standard Deviation = √((P * (1 - P)) / Samples
= √((0.081 * (1 - 0.081)) / 100
= 0.0273
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