Mathematics, 21.10.2020 16:01 jenescobedo
1. In 1995, the average level of mercury uptake in wading birds in the Everglades was 15 parts per million. If we assume that the distribution of mercury uptake has a standard deviation of 1 part per million, and a current sample of 25 wading birds has an average of 14.6 parts per million. Which null and alternative hypotheses would be used to test that the level of mercury uptake in the Everglades has decreased since 1995?
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1. In 1995, the average level of mercury uptake in wading birds in the Everglades was 15 parts per m...
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