QUESTION 1A team of research physicians conducted a study to detemine the effect of healtheducation on the utilization of health services for hypertension patients (Drug Topics,April 1993). Data collected for a sample of n = 282 new HMO enrollees withhypertension problems were used to fit the following model:E(y) = B + Bixi + Px2 + Bxs + Baxa + PsxsWherey = Anmual health care expenditures (Dollars)XI = Age (years)(1 if female%3Dif male[1X3 =if whiteo if nonwhiteX4 = Number of concomitant maintenance medications (Regimen)1 if enrolledX5 =toif notThe regression results are summarized in Table 1Table 1VariableBeta EstimateP-value for Testing Họ: Bi = 0< 0.05InterceptAge (xi)Gender (x2)Race (x3)Regimen (x4)Health Education (xs)64.821.05<0.05-10.53NonsignificantNonsignificant<0.05< 0.0010.279.46-92.97F = 37.84 , R? = 0.4357a.) Write the least squares prediction equation for annual health care expenditure (y).b.) Interpret the estimates of fi and 84.c.) Interpret the P-values shown in Table 1.d.) Is the model adequate for estimating the annual health care expenditure?Motivate your answer statistically. Use a = 0.05.e.) Interpret the value of R2.f.) Predict the annual health care expenditure of a 45 year old male whitehypertension patient who maintains three medications, but who has not enrolledin a health care education program.

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MATLAB: An Introduction with Applications

6th Edition

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Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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