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The amount of water dispensed by a water dispenser is normallydistributed, with a mean of 11.60 ounces and a standard deviation of0.15 ounces. In which range will the amount of water dispensed befound 99.7% of the time?

The amount of water dispensed by a water dispenser is normallydistributed with a mean of 1160 ounces and a standard deviation of015 ounces In which range will t class=

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Solution

For this case we have the following information:

mean = 11.6

sigma= 0.15

And we want to find the range of values that will cover 99.7% of the time and then we can do this:

11.6 -3*0.15= 11.15 ounces

11.6 +3*0.15= 12.05 ounces

And then the answer would be:

C. 11.15 ounces and 12.05 ounces

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