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 55 B 24 C 34 D 43 E 57

For the test errors, the

c-chart

with control limits that contain 99.73% of the random variation in test scores is:

UCLc = ???

LCLc = ???

According to the c-chart, there are ?? schools out of control.