Mathematics, 24.05.2021 14:00 valoiserika1229
A chemical plant is required to maintain ambient sulfur levels in the working environment atmosphere at an average level of no more than 12.50. The results of 15 randomly timed measurements of the sulfur level produced a sample mean of Y = 14.82 and a sample standard deviation of s = 2.91.
Required:
Is there evidence that the chemical plant is in violation of the working code?
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