Question

You are working in a small, student-run... You are working in a small, student-run company that sends out merchandise with university branding to alumni around the world. Every day, you take a sample of 50 shipments that are ready to be shipped to the alumni and inspect them for correctness. Across all days, the average percentage of incorrect shipments is 5%. What would be the upper control limit for a p-chart?

a. 0.05
b. 0.03082207
c. 0
d. 2.5
e. 0.142466

Answer 1

e. 0.142466

Step-by-step explanation:

We been given the following values in the question

n = 50

P = 0.5 ( 5/100)

P bar = Σnp/Σn

P bar = [(5/100)× 50]/50

= (0.05×50)/50

= 2.5/50

=0.05

Therefore to the calculate the upper and lower control limit we use the formula

UCL = p bar 3√ [p bar( 1-p bar)]/n

UCL = 0.05 + 3√[0.05(1-0.05)]/50

UCL= 0.142466 as our answer

Option e is the answer

Answer 2

e). 0.142466

Step-by-step explanation:

The attached picture shows the explanation and i hope it works. Thank you