Listed below are the speed ((mi/h) measured from the
Southbound traffic on I-280. The
speed limit is 65 mph.
62, 61, 61, 57, 61, 54, 59, 58, 59, 69, 60, 67, 70, 72, and
75
1. Construct a 99% confidence interval.
2. What will happen to the width of the confidence interval if
the confidence level is
increased to 99%? Explain
3.) What will happen
to the accuracy of the estimate if the sample size is
increased.