In a random sample of 8 people the mean commute time to work

Last updated: 3/27/2024

In a random sample of 8 people the mean commute time to work was 34 5 minutes and the standard deviation was 7 2 minutes A 98 confidence interval using the t distribution was calculated to be 26 9 42 1 After researching commute times to work it was found that the population standard deviation is 8 8 minutes Find the margin of error and construct a 98 confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is known Compare the results The margin of error of is Round to two decimal places as needed