A school bus driver records the time (in minutes) it takes to commute to school for six days. Those results are: 25, 22, 17, 20, 15, and 10. Assuming the population is normally distributed, develop a 95% confidence interval for the population mean. The confidence interval is:

A. 18.17 ± 4.40

B. 18.17 ± 5.61

C. 18.17 ± 4.27

D. 18.17 ± 8.80

Answer rating: 100% (QA)

Sample mean x xn x 25 22 17 20 15 106 1096 1817 Sample variance s 2 ... View the full answer