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4 years ago

7

An office supply company manufactures paper clips, and even tolerates a small proportion of those paper clips being ‘defective’

(or incorrectly shaped and/or twisted) in its outgoing product. (The company reasons that paper clips are so cheap, users will simply discard the occasional defective paper clip they might find in a box.) The average proportion of ‘defective’ paper clips is known to be 2% when the paper clip manufacturing process is ‘in control’. To monitor this issue, what should be the value of the upper control limit of a p-chart if the company plans to include 25 paper clips in each of its samples and use z-value of 3.0 to construct the chart? g

1 answer:

vovikov84 [41]4 years ago

4 0

Answer:

0.104 (10.4%)

Step-by-step explanation:

$UCL = \bar{p}+z(\sigma)$

$\sigma = p(1-)) Vn = 1.02(1-202)) 5$ = 0.028

$\thereforeUCL = .02+(3x0.028)$ = 0.104

$\thereforeUCL$ = 10.4%

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