Dissolved Oxygen Content The observationsin the table are dissolved oxygen contents in
Chapter 15, Problem 8(choose chapter or problem)
Dissolved Oxygen Content The observationsin the table are dissolved oxygen contents in water.The higher the dissolved oxygen content, the greaterthe ability of a river, lake, or stream to support aquaticlife. In this experiment, a pollution-control inspectorsuspected that a river community was releasingsemitreated sewage into a river. To check this theory,five randomly selected specimens of river water wereselected at a location above the town and another fivebelow. These are the dissolved oxygen readings (inparts per million):Above Town 4.8 5.2 5.0 4.9 5.1Below Town 5.0 4.7 4.9 4.8 4.9a. Use a one-tailed Wilcoxon rank sum test witha .05 to confirm or refute the theory.b. Use a Students t-test (with a .05) to analyzethe data. Compare the conclusion reached inpart a.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer