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Burt Smith, a town manager in New Jersey, is proud of the energy conservation program in the town. The management team there wants to know

Burt Smith, a town manager in New Jersey, is proud of the energy conservation program in the town. The management team there wants to know how much energy the town has saved. A random sample of 40 houses reveals an average saving of 36 kilowatt hours per week with a standard deviation of 30. Put a 95 % confidence interval around your best estimate of the average savings in the town and interpret the result using plain English . ( Hint: (40)=6.3246)

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