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Where did 1.463 and +- 1.960 came from

Where did 1.463 and +- 1.960 came from

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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Where did 1.463 and +- 1.960 came from ? Please write clearly
Calendar - Davarpara... ××, AV-Aa- gate A A A D-A- Basic Python Syntax |... V TOFTHE E-EL33 EESEK-3- Grams of protein in 30 random samples of energy bars Energy Bar - Grams of Protein 20.15 19.5 20.25 17.8 21.29 20.15 25.34 20.18 21.54 21.50 21.1 18.04 24.12 20.80 17.5 17.46 20.53 22.12 22.3 19.8 20.16 22.5 22.14 19.56 19.72 18.28 19.6 22.44 19.08 19.88 MacBook Pro 18 CodeSkulptor3 Convert to SmartArt Notes V Shapes Picture Text Box Abartleby.com o Mail - Davarparast, K... 28-12- Arrange Quick Styles Summary Statistics Sample: n = 30 Mode: 20.15 Median: x = 20.17 Mean: x = 20.494333 Standard Deviation: s= 1.8498195 Variance s² = 3.4218323 Significant level: 0.05 Comments PHO Share C Sensitivity ALL Design Ideas 103%
Transcribed Image Text:Calendar - Davarpara... ××, AV-Aa- gate A A A D-A- Basic Python Syntax |... V TOFTHE E-EL33 EESEK-3- Grams of protein in 30 random samples of energy bars Energy Bar - Grams of Protein 20.15 19.5 20.25 17.8 21.29 20.15 25.34 20.18 21.54 21.50 21.1 18.04 24.12 20.80 17.5 17.46 20.53 22.12 22.3 19.8 20.16 22.5 22.14 19.56 19.72 18.28 19.6 22.44 19.08 19.88 MacBook Pro 18 CodeSkulptor3 Convert to SmartArt Notes V Shapes Picture Text Box Abartleby.com o Mail - Davarparast, K... 28-12- Arrange Quick Styles Summary Statistics Sample: n = 30 Mode: 20.15 Median: x = 20.17 Mean: x = 20.494333 Standard Deviation: s= 1.8498195 Variance s² = 3.4218323 Significant level: 0.05 Comments PHO Share C Sensitivity ALL Design Ideas 103%
Calendar - Davarpara... Slide Show Review Aav ● . ● ● V • A A Ap DA C Basic Python Syntax I... stat-Saved to my Mac View Tell me EYE EEEE 15-03- EEE Step 1: Test hypothesis - Null hypothesis - Ho: u = 20 - Alternate hypothesis - Ho: u # 20 Step 2: Level of significant - Level of significant: 0.05 Step 3: Select Test statistic - Using z value -z = 1.463 Step 4: Critical value - Critical value: +/- 1.960 2 Step 5: Decision - Reject Ho if z < -1.960 or z> 1.960 - Since 1.463 < 1.960-> Fail to Reject Ho MacBook Pro Convert to SmartArt 20.15 20.16 T CodeSkulptor3 22.5 Ai Notes V Shapes Picture Text Box Energy Bar - Grams of Protein 19.5 20.25 17.8 21.29 20.15 25.34 20.18 21.54 21.50 22.14 19.56 21.1 18.04 24.12 20.80 19.72 18.28 17.5 17.46 20.53 22.12 19.6 22.44 19.08 19.88 22.3 19.8 Abartleby.com o Mail - Davarparast, K... Step 6: Interpret the result - Fail to reject the null hypothesis that the mean grams of protein is not equal to 20. - We make a practical conclusion that the labels are correct Comments 98-0-- Arrange Quick Quick Styles 19 H en Q Share Sensitivity Design Ideas 1 + 103%
Transcribed Image Text:Calendar - Davarpara... Slide Show Review Aav ● . ● ● V • A A Ap DA C Basic Python Syntax I... stat-Saved to my Mac View Tell me EYE EEEE 15-03- EEE Step 1: Test hypothesis - Null hypothesis - Ho: u = 20 - Alternate hypothesis - Ho: u # 20 Step 2: Level of significant - Level of significant: 0.05 Step 3: Select Test statistic - Using z value -z = 1.463 Step 4: Critical value - Critical value: +/- 1.960 2 Step 5: Decision - Reject Ho if z < -1.960 or z> 1.960 - Since 1.463 < 1.960-> Fail to Reject Ho MacBook Pro Convert to SmartArt 20.15 20.16 T CodeSkulptor3 22.5 Ai Notes V Shapes Picture Text Box Energy Bar - Grams of Protein 19.5 20.25 17.8 21.29 20.15 25.34 20.18 21.54 21.50 22.14 19.56 21.1 18.04 24.12 20.80 19.72 18.28 17.5 17.46 20.53 22.12 19.6 22.44 19.08 19.88 22.3 19.8 Abartleby.com o Mail - Davarparast, K... Step 6: Interpret the result - Fail to reject the null hypothesis that the mean grams of protein is not equal to 20. - We make a practical conclusion that the labels are correct Comments 98-0-- Arrange Quick Quick Styles 19 H en Q Share Sensitivity Design Ideas 1 + 103%
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