In this multiple regression output, which predictor variables have a statistically significant relationship with the outcome variable? Coefficients: (Intercept) age 256.87 children Yes 1216.53 regionSouth 690.62 sexMale 1511.42 Estimate Std. Error t value 1385.42 1.270 11.433 <0.0000000000000002 age, childrenYes, regionSouth, and sexMale age and sexMale age 1091.22 22.47 637.48 1.908 630.57 1.095 630.54 2.397 Pr(>|t|) 0.2044 age, childrenYes, and sexMale 0.0566 0.2736 0.0167

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