What is the upper control limit

Assignment Help Basic Statistics

Reference no: EM138194

1. Bags of chips are filled using a machine. Because not all chips are the same size, it is impossible to get the exact target weight in each bag. The target weight is 75 g. Based on samples of size 4, the average standard deviation is about 0.5 g and the average weight of the last batch of four bags was 74 g. Which of the following are the upper and lower control limits for an s control chart?

A. (0, 2.088)
B. (0, 1.044)
C. (74.25, 75.75)
D. (0.9213, 2.088)

2. A school tracks the absences of pupils as part of a flu surveillance system. Regular reporting of absences among 25 students in grade 1 are taken, and based on these data, the long-run proportion of absences under normal conditions is estimated to be . What is the upper control limit for a p chart of future absences from this class of size 25?

A. 0.080
B. 0.124
C. 0.155
D. 0.277

Reference no: EM138194

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