Question

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:
School No. of Test Errors
A............. 52
B............. 27
C............. 35
D............. 44
E............. 55
Construct a c-chart for test errors, and set the control limits to contain 99.73% of the random variation is test scores. What does the chart tell you? Has the new math program been effective?



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  • CreatedJuly 23, 2013
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