Question: It is stated that, in a certain city, the average water consumption per family is 5 m3 per month. If a random sample of 10

It is stated that, in a certain city, the average water consumption per family is 5 m3 per month. If a random sample of 10 observations is taken and T(x)=2.8. What can be said about water consumption, assuming that the sample comes from a Normal distribution? Assuming that the sample comes from a Normal distribution? Is water being saved? What could be stated if T(x) = -2.8? If T(x) = 0?

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