An advocacy group says Michigan's low-income working families need more help. The Michigan League for Human Services says many of those families are having trouble making ends meet with the jobs now available in the state. The organization claims four out of six occupations with the highest employment in Michigan in May 2006 paid median hourly wages below poverty level for a family of four. Those occupations are retail salespeople, cashiers, food preparation and service workers, and waiters and waitresses. The League is calling for higher subsidies for child care, expanding education and training programs and making health insurance more accessible to low-income working families.