Question: Chapter 6 s question 23 (the textbook asks for the control limits to contain 99.73% of the random variation. Do not use this number. Use

Chapter 6 s question 23 (the textbook asks for the control limits to contain 99.73% of the random variation. Do not use this number. Use 99.87% instead): The school board is trying to evaluate a new math program introduced to second-graders in five elementary schools across the county this year. A sample of the student scores on standardized math tests in each elementary school yielded the following data: Construct a c-chart for test errors, and set the control limits to contain 99.73% of the random. variation in test scores. What does the chart tell you? Has the new math program been effective? LCL=21.0194,UCL=66.1806 LCL =23.0194, UCL =62.1806. LCL-21.0194, UCL-68.1806. LCL =23.0194, UCL-68.1806. Sigma is needed for c.chart

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