Suppose you are interested in determining the amount of synthetic fertilizers in a nearby stream. If the amount of ferti
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Suppose you are interested in determining the amount of synthetic fertilizers in a nearby stream. If the amount of ferti
Suppose you are interested in determining the amount of synthetic fertilizers in a nearby stream. If the amount of fertilizer exceeds .068 parts per million in the stream we will say the water has been significantly polluted. Assuming the distribution of fertilizer content is normal and given the following information below construct the relating confidence interval with 98% confidence and discuss whether or not the stream has been significantly polluted. Show all work for this problem! Descriptive Statistics: Fertilizer Cont. Variable N Fertilizer Cont. 15 0.07007 Mean StDev Sum 0.00712 1.05100 Sum of Squares 0.07435
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