A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean is = 820 and the sample standard deviation is s= 25. Use Appendix D to find the values of Student's t (a) Construct an interval estimate of u with 99% confidence. (Round your answers to 3 decimal places.) The 99% confidence interval is from to (b) Construct an interval estimate of u with 99% confidence, assuming that s= 50. (Round your answers to 3 decimal places.) The 99% confidence interval is from (c) Construct an interval estimate of u with 99% confidence, assuming that s = 100. (Round your answers to 3 decimal places.) The 99% confidence interval is from to (d) Describe how the confidence interval changes as s increases. O The interval stays the same as s increases. es O The interval gets wider as s increases. O The interval gets narrower as s increases.

A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean is = 820 and the sample standard deviation is s= 25. Use Appendix D to find the values of Student's t (a) Construct an interval estimate of u with 99% confidence. (Round your answers to 3 decimal places.) The 99% confidence interval is from to (b) Construct an interval estimate of u with 99% confidence, assuming that s= 50. (Round your answers to 3 decimal places.) The 99% confidence interval is from (c) Construct an interval estimate of u with 99% confidence, assuming that s = 100. (Round your answers to 3 decimal places.) The 99% confidence interval is from to (d) Describe how the confidence interval changes as s increases. O The interval stays the same as s increases. es O The interval gets wider as s increases. O The interval gets narrower as s increases.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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