A bank developed a model for predicting the average checking and savings account balance as balance=16,151 386age 1,144years_education 0.149household_wealth The coefficient on household_wealth means that Question 17 options: the average account balance increases by $0.149 for each $1 increase in household wealth. the average household wealth increases by $0.149 for each $1 increase in the average account balance. the average account balance increases by 14.9% for each $1 increase in household wealth. the average household wealth increases by 14.9% for each $1 increase in the average account balance