Asked Oct 9, 2019

Suppose that you are using a p chart to monitor the percentage of times that you fail to get phone numbers at bars. Each day for 30 days you ask 15 different people for their phone number. On average, 6 people declined to give you their phone number each day. What would be the upper control limit for the p chart?


Expert Answer

Step 1

Given information:

Total samples (k)                                                          = 30

Sample size (n)                                                                = 15

Number of people did not give number (N) = 6

Step 2

Calculation of P-value:


Step 3

Calculation of P-bar:



Image Transcriptionclose

P Average of all P-values' for 30 days 0.4


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