An insurance company has an online help service for its customers. Customer queries that take more than $5$ minutes to resolve are categorized as$$ "unsatisfactory" experiences. To evaluate the quality of its$$ service, the company takes $10$ samples of $100$ calls each while the process is under control.

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Part $2$

a$.$ Calculate the p overbar and Upper S Subscript p values and set up control limits so that future sample p values should fall within the control limits$99\mathrm{.}7\%$ of the time.

The p overbar value is

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