(6.2) .6

In a random sample of

eleven

people, the mean driving distance to work was

21.3

miles and the standard deviation was

7.2

miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a

99%

confidence interval for the population mean

.

Interpret the results.

Question content area bottom

Part 1

Identify the margin of error.

enter your response here

miles

miles per hour

square miles

(Round to one decimal place as needed.)