Question 4b 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 A B C D E NO. OF TEST ERRORS 52 27 35 44 55 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?

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Question 4b
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
52
27
35
44
55
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?
A
B
C
D
E
Transcribed Image Text:Question 4b 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 52 27 35 44 55 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? A B C D E
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