- In A Random Sample Of 20 People The Mean Commute Time To Work Was 33 8 Minutes And The Standard Deviation Was 7 2 Minut 1 (13.73 KiB) Viewed 12 times
In a random sample of 20 people, the mean commute time to work was 33.8 minutes and the standard deviation was 7.2 minut
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
In a random sample of 20 people, the mean commute time to work was 33.8 minutes and the standard deviation was 7.2 minut
In a random sample of 20 people, the mean commute time to work was 33.8 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 90% confidence interval for the population mean u. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is (CD). (Round to one decimal place as needed.) SIDE