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A study was commissioned to find the mean weight of the residents in certain town. The study found a confidence interval for the mean weight to be between 156 pounds and 176 pounds. What is the margin of error on the survey?

Question

A study was commissioned to find the mean weight of the residents in certain town. The study found a confidence interval for the mean weight to be between 156 pounds and 176 pounds. What is the margin of error on the survey?

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Solution

The margin of error in a confidence interval can be calculated by subtracting the lower limit from the upper limit and then dividing the result by 2.

Here are the steps to calculate the margin of error:

  1. Subtract the lower limit from the upper limit. In this case, subtract 156 pounds from 176 pounds. The result is 20 pounds.

  2. Divide the result by 2. In this case, divide 20 pounds by 2. The result is 10 pounds.

So, the margin of error on the survey is 10 pounds.

This problem has been solved

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