Answer
42.1 Words to 64.5 Words
Work Step by Step
We need to find the margin of error. We know the following equation for the margin of error:
$E=t_{.025}\frac{s}{\sqrt{10}}$
Where s is the standard deviation.
Using a standard deviation calculator to find s, we find that the error is 11.2.
Thus, the values can range from 11.2 below the mean (42.1) to 11.2 above the mean (64.5).