A Town's Department of Public Works Is Concerned About Adverse

Essay

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,a sample of 100 residents is questioned on their feelings towards the project.The results to date are shown below.Analyze this data using an appropriate control chart with a 5% risk of Type I error.Is the community sentiment stable?