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 the student scores on standardized math tests in each elementary school yielded the following data:
School No. of Test Errors A 45 B 24 C 38 D 41 E 45

OPTIONS FOR DROP DOWN ARE SOME/NO
For the given information, the value of C = errors (round your response to two decimal places). For the test errors, the c-chart with control limits that contain 99.73% of the random variation in test scores is: UCLE = C+3 7+ where is the mean number of test errors per school. UCLE errors (round your response to two decimal places). LCLE = max [0, c-3./c] where is the mean number of test errors per school. LCL = errors (round your response to two decimal places and if your answer is negative, enter this value as 0). The process is in control when the number of errors is within the limits. According to the c-chart, there are schools out of control
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
