16. Calcium is an essential nutrient for strong bones and for controlling blood pressure and heartbeat. Because most of the body's calcium is stored in bones and teeth, the body withdrawsthe calcium it needs from the bones. Over time, if more calcium is taken out of the bones thanis put in, the result may be thin, weak bones. This is especially important for women who areoften recommended a calcium supplement. A consumer group activist assumes that calciumcontent in two popular supplements are normally distributed with the same (assumed equal)unknown population variance, and uses the following information obtained under independentsampling:Supplement 1Supplement 21.000 mg1.016mgI=s= 23 mgI2Sy = 24 mg-122-15Let A and denote the corresponding population means, Construct a 95% confidenceinterval for the difference ph - .A. [-30.9386, 1.0614]B. [-31.5886,-0.4114]C. [-33.8007, 1.8007]D. [-34.8012, 2.8012] 17. In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates thatlenders give homeowners who fall behind on their mortgage an extra five months to becomecurrent before beginning foredosure proceedings. Policymakers daimed that the policy wouldresult in a higher proportion of delinquent borrowers becoming current on their mortgages.To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure inthe time period surrounding the enactment of this law. Of the 100 who fell behind just beforethe law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just afterthe law was enacted, 48 were able to avoid foredosure, Let p, and pz represent the proportionof delinquent borrowers who avoid foredosure just before and just after the right-to-cure lawis enacted, respectively, Which of the following is the correct competing hypotheses that willtest the policymakers' claim?A. Ho: p.-P2 50, HA: p. -P2 > 0B. Ho: p,- p, 2 0, HA: P1 -P2 < 0C. H: p.- p, = 0, HA: P,- P2 0D. Ho: p, - p2 > 0, HA: P1 - P2 500, HA: p1 - pz #0%3D

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16. Calcium is an essential nutrient for strong bones and for controlling blood pressure and hear beat. Because most of the body's calcium is stored in bones and teeth, the body withdraw= the calcium it needs from the bones. Over time, if more calcium is taken out of the bones thar is put in, the result may be thin, weak bones. This is especially important for women who are often recommended a calcium supplement. A consumer group activist assumes that calcium content in two popular supplements are normally distributed with the same (assumed equal) unknown population variance, and uses the following information obtained under independent sampling: Supplement 1 Supplement 2 1,000 mg 22 = 1,016 mg S2 = 24 mg S= 23 mg -12 72-15 Let u and ph denote the corresponding population means, Construct a 95% confidence interval for the difference A-.

16. Calcium is an essential nutrient for strong bones and for controlling blood pressure and hear beat. Because most of the body's calcium is stored in bones and teeth, the body withdraw= the calcium it needs from the bones. Over time, if more calcium is taken out of the bones thar is put in, the result may be thin, weak bones. This is especially important for women who are often recommended a calcium supplement. A consumer group activist assumes that calcium content in two popular supplements are normally distributed with the same (assumed equal) unknown population variance, and uses the following information obtained under independent sampling: Supplement 1 Supplement 2 1,000 mg 22 = 1,016 mg S2 = 24 mg S= 23 mg -12 72-15 Let u and ph denote the corresponding population means, Construct a 95% confidence interval for the difference A-.

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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