Problem 2039. Homemade: Control Charts

Created by Mehmet OZC

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This problem is a simple version of control charts in statistics. Intput consists from 30 or more observations.

Upper limit = mean(input) + 3 * std(input)
Lower limit = mean(input) - 3 * std(input)

If all of the observations are between upper limit and lower limit then return true.

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91 Solutions
43 Solvers

Last Solution submitted on Jun 24, 2025

Last 200 Solutions

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2 Comments

2 Comments

Ryan Vande Water on 9 Dec 2013

test suite is correct, but the problem statement is incorrect. Upper limit should be mean PLUS 3 stdev, and lower limit should be minus 3 stdev.

Mehmet OZC on 9 Dec 2013

thanks for the warning. I have corrected the problem statement.

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