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Thepownis epectad hae anoraly e l deats pe 0pace ROLad to tre decimal daces a ned) OB. 61.2% of he devaton in he moraly cn de acorted dr a ha nod ncakimoncaralt OC The montaly can e aoune tr y6.26 dfte acdur orceotaon

Thepownis epectad hae anoraly e l deats pe 0pace ROLad to tre decimal daces a ned) OB. 61.2% of he devaton in he moraly cn de acorted dr a ha nod ncakimoncaralt OC The montaly can e aoune tr y6.26 dfte acdur orceotaon

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.6: Solving Problems Involving Quadratic Equations
Problem 1.3E
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Researchers collected data on the annual mortality rate (deaths per 100,000) for males in 20 large towns and the water hardness in terms of the calcium concentration parts per million, ppm) in the drinking water. OB. Tnere is a rairıy strong, negative, iinear reiationsnip between caicium concentration and mortaty rate. Iowns witn softer water tended to have lower mortality rates. O C. There is a fairly weak, positive relationship between calcium concentration and mortality rate. Towns with harder water tended to have lower mortality rates. 1363- 24 Calcium (ppm) 229 b) Here is the regression analysis of mortality and calcium concentrationWhat is the regression equation? Dependent variable is: Mortality R-Squared = 61.2% P-value s=63.877 Variable Intercept Calcium (ppm) t-ratio SE (Coeff) 30.21 0.22 Coefficient 56.51 <0.0001 1707.214 <0.0001 -5.21 -1.147
Transcribed Image Text:Researchers collected data on the annual mortality rate (deaths per 100,000) for males in 20 large towns and the water hardness in terms of the calcium concentration parts per million, ppm) in the drinking water. OB. Tnere is a rairıy strong, negative, iinear reiationsnip between caicium concentration and mortaty rate. Iowns witn softer water tended to have lower mortality rates. O C. There is a fairly weak, positive relationship between calcium concentration and mortality rate. Towns with harder water tended to have lower mortality rates. 1363- 24 Calcium (ppm) 229 b) Here is the regression analysis of mortality and calcium concentrationWhat is the regression equation? Dependent variable is: Mortality R-Squared = 61.2% P-value s=63.877 Variable Intercept Calcium (ppm) t-ratio SE (Coeff) 30.21 0.22 Coefficient 56.51 <0.0001 1707.214 <0.0001 -5.21 -1.147
Thepownis epected o haveamoralyel deats pe 0pace ROad to tre decimal daces a ned) OB. 61.2% of he evaton in he moraly can e acorte dr ya rar ndl o akim oncaralo OC The monaly can e aoutetr y 6.26 otecactu orceoraion
Transcribed Image Text:Thepownis epected o haveamoralyel deats pe 0pace ROad to tre decimal daces a ned) OB. 61.2% of he evaton in he moraly can e acorte dr ya rar ndl o akim oncaralo OC The monaly can e aoutetr y 6.26 otecactu orceoraion
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