Nitrate concentrations above 50ppm in groundwater are not desirable for human consumption. Groundwater samples were taken from newly drilled boreholes in Northern Ghana for water quality analysis. The nitrate concentrations were as follows: 10, 87, 15, 29, 19, 109, 112, 45.5, 22, 99, 27, 88, 55, 5.5, 10.7, 9.7, 20.5. Determine at 99% level of confidence if groundwater in the area is of good quality.

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Nitrate concentrations above 50ppm in groundwater are not desirable for human consumption.
Groundwater samples were taken from newly drilled boreholes in Northern Ghana for water
quality analysis. The nitrate concentrations were as follows: 10, 87, 15, 29, 19, 109, 112, 45.5,
22, 99, 27, 88, 55, 5.5, 10.7, 9.7, 20.5. Determine at 99% level of confidence if groundwater in
the area is of good quality.
Transcribed Image Text:Nitrate concentrations above 50ppm in groundwater are not desirable for human consumption. Groundwater samples were taken from newly drilled boreholes in Northern Ghana for water quality analysis. The nitrate concentrations were as follows: 10, 87, 15, 29, 19, 109, 112, 45.5, 22, 99, 27, 88, 55, 5.5, 10.7, 9.7, 20.5. Determine at 99% level of confidence if groundwater in the area is of good quality.
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