A random sample of 11 items is drawn from a population whose standard deviation is unknown. The sample mean is = 920 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 95% confidence. (Round your answers to 3 decimal places.) The 95% confidence interval is from to (b) Construct an interval estimate of u with 95% confidence, assuming that s = 50. (Round your answers to 3 decimal places.) The 95% confidence interval is from to (c) Construct an interval estimate of u with 95% confidence, assuming that s= 100. (Round your answers to 3 decimal places.)

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A random sample of 11 items is drawn from a population whose standard deviation is unknown. The sample mean is = 920 and the
sample standard deviation is s= 25. Use Appendix D to find the values of Student'st
(a) Construct an interval estimate of u with 95% confidence. (Round your answers to 3 decimal places.)
The 95% confidence interval is from
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(b) Construct an interval estimate of u with 95% confidence, assuming that s = 50. (Round your answers to 3 decimal places.)
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Transcribed Image Text:8-3 Homework: Chapter 8 (Sectic X Question 6-8-3 Homework: Cha X b Answered: Calculate the standarc X https://ezto.mheducation.com/ext/map/index.html?_con%3Dcon&external_browser%3D0&launchUrl%=Dhttps%253A%252F%252Fnewconnect.mheduca. omework: Chapter 8 (Sections 8.1 through 8.5) 6 Saved Help Save & Exit Check n A random sample of 11 items is drawn from a population whose standard deviation is unknown. The sample mean is = 920 and the sample standard deviation is s= 25. Use Appendix D to find the values of Student'st (a) Construct an interval estimate of u with 95% confidence. (Round your answers to 3 decimal places.) The 95% confidence interval is from ped to pok Int (b) Construct an interval estimate of u with 95% confidence, assuming that s = 50. (Round your answers to 3 decimal places.) ences The 95% confidence interval is from to (c) Construct an interval estimate of u with 95% confidence, assuming that s = 100. (Round your answers to 3 decimal places.) %3D Prev 6 of 10 Next 90°F a. 42 re to search
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