To state the confidence interval, you just have to take the mean, or the average (180), and write it next to ± and the margin of error. For example, if you are 95 percent confident that your population mean is between 75 and 100, the 95 percent confidence interval does not mean there is a 95 percent chance the mean falls within your calculated range.

You'll be testing how accurately you will be able to predict the weight of male students in ABC university within a given confidence interval.
You can find the upper and lower bounds of the confidence interval by adding and subtracting the margin of error from the mean.

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