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\fA sociologist wishes to study the relationship between happiness and age. He interviews 24 individuals and collects data on age and happiness, measured on a scale from 0 to 100. He estimates the following model: Happiness = 60 + 61Age + &. The following table summarizes a portion of the regression results. Standard Coefficients Error t-stat p-value Intercept 56. 1837 5 . 2122 10. 7793 0. 0000 Age 0 . 2817 0 . 0844 3. 3377 0 . 0046 The estimate of Happiness for a person who is 60 years old is the closest to