Mathematics, 18.12.2019 05:31 mia3128

There are several alternatives for alleviating so2 pollution from smokestacks in operations using coal as a major fuel source. one is to employ a scrubber that cleans the gases after the coal is burned prior to release. in 50 samples of gases emitted from a stack equipped with a scrubber, the sample mean and sample standard deviation so2 emissions were 0.13 and 0.05 ppm btu, respectively. construct a 95% conﬁdence interval for σ2.

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There are several alternatives for alleviating so2 pollution from smokestacks in operations using co...