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Volgvan
3 years ago
12

The confidence interval for the water consumption of a certain plant is 5 gallons to 13 gallons per year. The level of confidenc

e is 95%. What is the average consumption and the margin of error?
Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0

Answer:

Average consumption ( mean )  =  9

MOE = 4

Step-by-step explanation:

We know that

CI   ( 5  ;  13 )

and   CI [ μ - MOE  ;  μ + MOE ]

From the above relations we get

μ - MOE = 5

μ + MOE = 13

Adding member to member these two equations we get

2*μ  =  18

μ = 9    and MOE = 13 - 9

MOE = 4

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