Answered step by step
Verified Expert Solution
Question
1 Approved Answer
(2 points) Among the most exciting aspects of a university professor's life are the departmental meetings where such critical issues as the color the walls
(2 points) Among the most exciting aspects of a university professor's life are the departmental meetings where such critical issues as the color the walls will be painted and who gets a new desk are decided. A sample of 20 professors was asked how many hours per year are devoted to such meetings. The responses are listed below. Assuming that the variable is normally distributed with a standard deviation of 7 hours, estimate the mean number of hours spent at departmental meetings by all professors. Use a confidence level of 96% 8. 8. 18. 3. 16. 6. 22. 13, 19, 16, 11. % 7, 9, 14. 4. 13. 17. 7. 15 HINT. For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence imits Notice that the population standard deviation is provided in the problem. To get the mean for use in your confidence interval, use the sample mean formula from Chapter 2. You should have all that you need from there Confidence interval
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started