Mathematics, 15.07.2020 01:01 haleyblu6351
By law, an industrial plant can discharge not more than 500 gallons of waste water per hour, on the average, into a neighboring lake. Based on other infractions they have noticed, an environmental action group believes this limit is being exceeded. Monitoring the plant is expensive, and only a small sample is possible. Four one-hour periods are selected randomly over a period of one week. The following are observed:
1384, 683, 1534, 405
Do you reject the null hypothesis that the limit is not being exceeded?
Answers: 2
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