There is concern that increased industrialization may be increasing the mineral

ID: 3391494 • Letter: T

Question

There is concern that increased industrialization may be increasing the mineral content of river water. Ten years ago, the silicon content of the water in a certain river was 5 mg/L. Eighty-five water samples taken recently from the river have mean silicon content 5.4 mg/L and standard deviation 1.2 mg/L. a) Carry out the appropriate hypothesis test by hand. b) Verify your work in part (a) by using an appropriate confidence interval. (Don’t forget to state the appropriate level of confidence)

What is the hypothesis going to be ??????? also confidence interval more detail please .. the one posted isnt the right way..

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There is concern that increased industrialization may be increasing the mineral

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There is concern that increased industrialization may be increasing the mineral

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