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Q1) You wish to find out if negative relationship exists between amount of bottled water someone drinks and their water bill. Place differently, if people drink lot of bottled water do they use less water?
Bottles of water
Gallons of Water Used
44
265
41
445
26
353
21
301
35
149
i) Explain the relationship, if one exists?
ii) Create a prediction model, if suitable.
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Mean=63.6 Standard deviation=2.5 If 36 data points are arbitrarily chosen, determine the probability that mean is less than 64.
Make a decision regarding the null hypothesis based on the sample information. Interpret the results of the test and state your conclusion.
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