2. The following exercises are based on a study by Scholer et el. (1997). This wasa nested case-control study obtained from a cohort of children age 0 through 4years in Tennessee between January 1, 1991 and December 31, 1995. Casepatients consist of all cohort members who suffered injury deaths. Controlpatients were frequency matched to case patients by birth year. The variablesare;PnclateByearinjflagbyear986987988989990991993994995CrudeM-H combinedIllegitOR=1.3660711.1713633.2924312.184272.5615022.4845562.4312032.9004581.8947372.2569932.279816Test of homogeneity (M-H)year of birth1:a. The results below were obtained using the Mantel-Haenszel estimate of birth-year adjusted odds ratio for injury death among children with unmarriedmothers compared with those with married mothers. Note: the reference groupis married mothers.cc injflag illegit, by (byear){if subject died of injuries0:otherwise,1: if no prenatal care was received in the first fourmonths of pregnancy0: if such care was given, or if information is missing.1: if born out of wedlock{0: otherwise.[95% Conf. Intervall.6399061 2.796052.5360591 2.4393141.579069 6.9643591.209814 3.9176271.766975 3.7155941.431054 4.3413341.368645 4.3479541.52875 5.604574.6730893 5.3068531.8700881.895291chi2 (8) -Test that combined OR 1:2.7239882.742356M-H Weight8.22 Pr>chi2 = 0.4127Mantel-Haenszel chi2(1) -Prochi?c. Is birth-year a confounder? Briefly explain(.817391 (exact).181176 (exact)4.27451 (exact)8.005997 (exact)17.86557 (exact)3.693706 (exact)3.144118 (exact)6.122592 (exact)3.166667 (exact)0.0000

From the given summary table: Crude OR = 2.256993 (1.870088, 2.723988) M-H OR = 2.279816 (1.895291,…

Answered: Crude M-H combined 2.256993 2.279816…

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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Only 19% of registered voters voted in the last election. Will voter participation increase for the upcoming election? Of the 398 randomly selected registered voters surveyed, 84 of them will vote in the upcoming election. What can be concluded at the αα = 0.01 level of significance? The test statistic = ____ (3 decimal places) The p-value = (4 decimal places)
DETAILS ROSBIOSTAT8 6.E.108-109. Radiology, Cancer A radiologist investigates whether a new (less costly) method for identifying esophageal cancer is as effective as the gold standard. He obtains the following test results: false positive = 0, true positive (a) What is the sensitivity of the test? (Round your answer to four decimal places.) 09787 (b) Consider the following Excel spreadsheet. Р 0.8000 1.000 0.8100 0.999 0.8200 0.999 0.8300 0.998 0.8400 0.997 0.8500 0.996 0.8600 0.993 0.8700 0.988 0.8800 0.982 0.8900 0.972 0.9000 0.956 0.9100 0.933 0.9200 0.899 0.9300 0.850 0.9400 0.782 0.9500 0.688 0.9600 0.566 0.9700 0.414 0.9800 0.242 0.9900 0.080 0.9950 0.023 0.9990 0.001 0.9995 0.000 Need Help? BINOMDIST(45, 47, p, TRUE) Read It MY NOTES = 1.000 1.000 1.000 1.000 1.000 1.000 0.999 0.999 0.998 0.996 0.993 0.988 0.980 0.967 0.945 0.910 0.853 0.761 0.613 0.376 0.210 0.046 0.023 ASK YOUR TEACHER 46, false negative = 1, true negative = 17. BINOMDIST(46, 47, p, TRUE) True positves True…
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* Question Completion Status: Dep.=Annuar Saies indep. Salespersons SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations 26.0000 ANOVA Significance df SS MS Regression Residual Total 187.6696 Standard P-value Lower 95% Upper 95% Coefficients 118.3130 22.6638 Error Intercept Salespersons 10.6262 7.3436 t Stat 11.1340 3.0862 SE CI CI PI PI Upper 95% Upper 95% Predicted Predicted Lower Lower Value Value 95% 95% 1.0000 2.0000| 140.9768 163.6406 3.9808 5.160|| Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Pro
11
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Returns ABC XYZ -0.22 55 0.31 44 0.25 15 ).4322 2845 -0.0645 1433 -0.51 14 5534 0.33 78 6: 0.3295 0.70 19 1514 0.25 3 0.44 32 -0.22 45 0.092 78 0.2763 -0.48 79 0.5263 AAR 0.119969 Standard deviation of ABC is 1.172 Standard deviation of XYX is 1.256 what is the covariance and correlation?

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Crude M-H combined 2.256993 2.279816 Test of homogeneity (M-H) 1.870088 2.723988 2.742356 1.895291 chi2 (8) - 8.22 Pr>chi2 = 0.4127 Test that combined OR 1: Mantel-Haenszel chi2(1) - Pr>chi2 c. Is birth-year a confounder? Briefly explain 79.34 0.0000 (exact)