Given the following in the attached image answer b to e using the attached information about variables average hourly earnings (ahe) and age

4. Use the data file CPS12.csv for this question. A detailed description of the data set is given in CPS12_Description.pdf. In this exercise, you will investigate the relationship between a worker's age and earnings. (Generally, older workers have more job experience, leading to higher productivity and earnings.) # # year ahe bachelor female # # Min. : 2012 Min. : 2.137 Min. :0.0000 Min. :0.0000 # # ist Qu. :2012 1st Qu. : 12.115 1st Qu. : 0 . 0000 1at Qu. : 0. 0000 # # Median :2012 Median : 17.308 Median :1.0000 Median : 0.0000 # # Mean : 2012 Mean : 19.800 Mean :0. 5316 Mean : 0. 4243 # # 3rd Qu. :2012 ard Qu. : 24.308 3rd Qu. :1.0000 3rd Qu. :1. 0000 # # Max . : 2012 Max . : 91 . 456 Max. : 1. 0000 Max :1.0000 # # age # # Min. : 25.00 # # 1st Qu. :27.00 # # Median :30.00 # # Mean : 29. 65 # # 3rd Qu. : 32.00 # # Max. :34.00 # # ## Call: ## 1m (formula = ahe ~ age) # # ## Residuals: # # Min 10 Median 30 Max # # -19.864 -7.381 -2.245 4.799 72. 499 # # # # Coefficients: # # Estimate Std. Error t value Pr (> /t/) # # (Intercept) 4. 62605 1. 28752 3. 593 0.000329 * * * ## age 0 . 51182 0. 04323 11 . 840