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
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 student scores on standardized math tests in each elementary school yielded the following data:
School
No. of Test Errors
A
42
B
30
C
28
D
16
E
25
What are the UCL and LCL for the 3-sigma C-chart?
34, 12
44, 16
34, 16
44, 12
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