The school board is trying to evaluate a new math program introduced to second-graders
January 8th, 2018
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:SchoolNo. of Test ErrorsA52B27C35D44E55Construct 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?