Mathematics, 06.12.2021 19:00 emily41950
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8. The level of dissolved oxygen in a river is an important indicator of the water's ability to support
aquatic life. You collect water samples at 15 randomly chosen locations along a stream and
measure the dissolved oxygen. Here are your results in milligrams per liter;
4.53, 5.04, 3.29, 5.23, 4.13, 5.50, 4.83, 4.40, 5.42,6.38, 4.01, 4.66, 2.87, 5.73, 5.55
Construct and interpret a 95% confidence interval for the mean dissolved oxygen level for this
stream.
Answers: 3
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36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)
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8. The level of dissolved oxygen in a river is an important indicator of the water's ability to...
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