As the quality control manager for a water treatment plant, you are tasked with testing the water

before it gets to consumers. In the past, you have found 2 contaminated samples per week. For the

past year (52 weeks), the average has been 2.25, with a standard deviation of 1.0. You decide to instead investigate the proportion of samples that are

contaminated. You know the proportion of contaminated samples is 0.05 (5%). Now

what would the standard deviation of the proportion of contaminated samples be, if you

continue taking samples of 52 weeks?

asked by guest
on Nov 18, 2024 at 7:23 pm



Mathbot Says...

I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.


+ Submit Question