The following table includes the GNP(X) and the demand for food (Y) for a country over ten years period. Year 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 Y 6 7 8 10 8 9 10 9 11 10 X 455555 50 52 59 57 5553 58 62 65 68 70 a. Estimate the food function b. Compute the coefficient of determination c. Compute the standard error of the regression coefficients and conduct test of significance at the 5% level of significance.