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# (4 points + 1 point BONUS) There is some evidence to suggest that exposure to airborne fungal products may be associated with adverse health effects,...

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(4 points + 1 point BONUS) There is some evidence to suggest that exposure to airborne fungal products may be associated with adverse health effects, for example, respiratory tract infections. A random sample of Canadian elementary schools was obtained and the following data was obtained for each: mesophilic fungi (y, in cfu/m3), building age (Age, x1, in years), air exchange rate (Rate, xz, per hour),indoor C02 (C02, X3, ppm), and outdoor temperature (Temperature, X4, °C). The following are the results from R: Residuals:Min 19 Median 39 Max-68.80 -21.35 1.40 22.32 71.14 Coefficients:Estimate Std. Error t value Pr(>|t|)(Intercept) 111.32601 35.05560 3.176 0.003944 *' Age 2.24456 0.56101 4.001 0.000494 “WRate -0.20778 3.49380 -0.059 0.953049C02 0.41631 0.05697 7.307 1.18e-07 *" Temperature 0.75525 0.55682 1.356 0.187105 Signif. codes: 0 "’“" 0.001 "*' 0.01 "’ 0.05 ‘.' 0.1 ‘ ’ Residual standard error: 35.84 on 25 degrees of freedom (1 observation deleted due to missingness)Multiple R-squared: 0.8209, Adjusted R-squared: 0.7923F-statistic: 28.65 on 4 and 25 DF, p-value: 5.185e-09