Question

use the given confidence interval to find the margin of error and the sample mean. (13.2,19.8) the sample mean is 16.5. (type an integer or a decimal.) the margin of error is. (type an integer or a decimal.)

Explanation:

Step1: Recall the formula for margin of error

The margin of error \(E\) is given by \(E=\frac{\text{Upper limit}-\text{Lower limit}}{2}\).

Step2: Substitute the values

Here, the lower limit \(L = 13.2\) and the upper limit \(U=19.8\).

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Answer:

The margin of error is \(3.3\)