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A local newspaper has 10 delivery boys who each deliver the morning newspaper to 50 customers every day

A local newspaper has 10 delivery boys who each deliver the morning newspaper to 50 customers every day. The owner decides to record the percentage of papers delivered on time for a 10-day period and construct a p chart to see whether the percentage is too erratic.

Day Percentage of Papers Delivered on Time
1 91.6
2 89.4
3 92.8
4 90.0
5 86.4
6 96.8
7 91.4
8 98.8
9 95.2
10 93.6

Referring to the table, what is the numerical value of the center line for the p chart?

A. 0.926
B. 0.911
C. 0.885
0.500

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Hello!
The correct answer is A: 0.926

In this case, the center ...

$2.19