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An experiment was conducted to investigate particle suspension (Cloudiness - C) with Temperature (T). The following regression analysis was obtained from EXCEL: Sum Sum/17

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An experiment was conducted to investigate particle suspension (Cloudiness - C) with Temperature (T). The following regression analysis was obtained from EXCEL: Sum Sum/17 T 424.6 24.97647 C TC n 3025 177.94118 78139.3 4596.42941 10641.96 625.99765 722662 42509.52941 17 Sx 36.95058824 2585.476471 SAX Sy 184389.9412 SUMMARY OUTPUT Regression Statistics Multiple R 0.990515552 ANOVA R Square 0.981121058 df SS Adjusted R Square 0.979862462 Regression 1 180908.8542 Standard Error 15.23392479 Residual 15 3481.086968 MS 180908.8542 232.0724646 F 779.5360581 Significance F 2.39962E-14 Observations 17 Total 16 184389.9412 Intercept Temperature (T) Coefficients Standard Error -1569.692 62.70287863 69.97119 2.506115768 t Stat -25.03381215 P-value 1.19378E-13 Lower 95% -1703.340107 27.92017296 2.39962E-14 64.62952637 Upper 95% -1436.04406 75.312845 For the following give all answers to THREE decimal places: (i) What is the intercept of regression line? Intercept: I (ii) What is the slope of the regression line? (iii) Is the slope significantly different from zero? (A. Yes, B. No) (Type the associated letter: A, or B) (iv) What is the coefficient of determination as a percentage? (Give answers to two decimal places) % (v) What is the 95% confidence interval for Cloudiness levels at a Temperature of 25? (Give answers to two decimal places) Minimum value: Maximum Value:

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