A town's department of public works is concerned about adverse public reaction to a sewer project...

 

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A town's department of public works is concerned about adverse public reaction to a sewer project that is currently in progress. Because of this, the Commissioner of Public Works has authorized a weekly survey to be conducted of town residents. Each week, for a total of 10 weeks, a sample of 100 residents is questioned on their feelings towards the project. Number of responndets who opposed (each week, respectively): 12, 9, 21, 8, 11, 7, 24, 8, 18, 14.Analyze this data using an appropriate control chart (three sigma control limits). Is the community sentiment stable? Select one: O a. Unstable,3 observations out of control b. Unstable, 1 observations out of control O c. Unstable, 2 observations out of control O d. Stable A town's department of public works is concerned about adverse public reaction to a sewer project that is currently in progress. Because of this, the Commissioner of Public Works has authorized a weekly survey to be conducted of town residents. Each week, for a total of 10 weeks, a sample of 100 residents is questioned on their feelings towards the project. Number of responndets who opposed (each week, respectively): 12, 9, 21, 8, 11, 7, 24, 8, 18, 14.Analyze this data using an appropriate control chart (three sigma control limits). Is the community sentiment stable? Select one: O a. Unstable,3 observations out of control b. Unstable, 1 observations out of control O c. Unstable, 2 observations out of control O d. Stable

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