The "new grapefruit diet" has been advertised to be a remarkable way to lose weight. Random sample of four males' subjects are put on the diet; and here are the results after one month: Subject Before (B) After (A) Difference=After-Before (d;)-12 1 2 3 4 168 215 192 225 223 156 200 190 -15 -2 -2 a) If the diet "works" we would expect the average difference to be significantly less than 0. Since we are doing after minus before we would want the after weight to be smaller in this situation. Please conduct the hypothesis testing at 5% significance level when the alternative hypothesis is that H1= H- H3 < 0. Hint: FORMULAS: Pooled sample variance for constructing the confidence interval for population mean differences if population variances are not known:

The "new grapefruit diet" has been advertised to be a remarkable way to lose weight. Random sample of four males' subjects are put on the diet; and here are the results after one month: Subject Before (B) After (A) Difference=After-Before (d;)-12 1 2 3 4 168 215 192 225 223 156 200 190 -15 -2 -2 a) If the diet "works" we would expect the average difference to be significantly less than 0. Since we are doing after minus before we would want the after weight to be smaller in this situation. Please conduct the hypothesis testing at 5% significance level when the alternative hypothesis is that H1= H- H3 < 0. Hint: FORMULAS: Pooled sample variance for constructing the confidence interval for population mean differences if population variances are not known:

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Description: The "new grapefruit diet" has been advertised to be a remarkable way to lose weight. Randomsample of four males' subjects are put on the diet; and here are the results after one month:SubjectBefore (B)After (A)Difference=After-Before (d;)-1212341682

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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