y^=9,046+339x1+1,399x2+4,941x3+15,895x4+12,719x5+6,152x6+1,208x7+8,050x8+50,321x9+6,178x10 Here, x1 =sex (1 for females, 0 for males); x2-x5 are indicators for age categories 18-30 years, 30-50 years, 50-70 years, and > 60 years respectively; x6 = length of stay (days) ; x7-x9 are indicators for severity score categories 2, 3, and 4 respectively; x10 = health insurance status (1 for "has insurance", 0 for "does not have insurance") Based on the adjusted results (multiple linear), what is the estimated mean charge for 25-year old females with health insurance in the lowest severity score category who are discharged after 1 day in the hospital