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1. Find the confidence interval for the following situations: i. A proportion where x = 44, n = 220, at the 99% confidence level. 1% 44 220 =.2 =9 1.005 2.576 12 (18) J ((.1365, 2645) ii. A mean where sample mean = 65, n = 40, sample standard deviation = 11.2. 3924 65 T = 36.705 2 3.82×10-32 11.2 ✓HO invN(.005). 2.576 2. Test the claim that the population proportion in #1. above is different from .20 (the population proportion). Use alpha level = .05 44 220 ニュ冷 .2- 3. Test the claim that the mean in #2 above is greater than 65 (the population mean). Use alpha level = .01

1. Find the confidence interval for the following situations: i. A proportion where x = 44, n = 220, at the 99% confidence level. 1% 44 220 =.2 =9 1.005 2.576 12 (18) J ((.1365, 2645) ii. A mean where sample mean = 65, n = 40, sample standard deviation = 11.2. 3924 65 T = 36.705 2 3.82×10-32 11.2 ✓HO invN(.005). 2.576 2. Test the claim that the population proportion in #1. above is different from .20 (the population proportion). Use alpha level = .05 44 220 ニュ冷 .2- 3. Test the claim that the mean in #2 above is greater than 65 (the population mean). Use alpha level = .01

MATLAB: An Introduction with Applications
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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1. Find the confidence interval for the following situations: i. A proportion where x = 44, n = 220, at the 99% confidence level. 1% 44 2.2 =p ·005 220 0.069 = 2.576 12 (18) 12 (.1365, 2695) ii. A mean where sample mean = 65, n = 40, sample standard deviation = 11.2. 65 3924 T= 36.705 2 3.82×10-32 11.2 40 invN(.005) 2.576 2. Test the claim that the population proportion in #1. above is different from .20 (the population proportion). Use alpha level = .05 44 220 コニュニア = .2- 3. Test the claim that the mean in #2 above is greater than 65 (the population mean). Use alpha level = .01
Transcribed Image Text:1. Find the confidence interval for the following situations: i. A proportion where x = 44, n = 220, at the 99% confidence level. 1% 44 2.2 =p ·005 220 0.069 = 2.576 12 (18) 12 (.1365, 2695) ii. A mean where sample mean = 65, n = 40, sample standard deviation = 11.2. 65 3924 T= 36.705 2 3.82×10-32 11.2 40 invN(.005) 2.576 2. Test the claim that the population proportion in #1. above is different from .20 (the population proportion). Use alpha level = .05 44 220 コニュニア = .2- 3. Test the claim that the mean in #2 above is greater than 65 (the population mean). Use alpha level = .01
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