Answer:
A 95% confidence interval for the average commute time of eight people is (29.8 minutes, 40.2 minutes). This confidence interval is calculated using the formula x ± (1.96 * (s/sqrt n)), where x is the sample mean, s is the sample standard deviation, and n is the sample size. In this case, the sample mean is 35 minutes, the sample standard deviation is 7.2 minutes, and the sample size is 8.