what is your visa status?
are you under husband visa so (you have to get your own business visa, not family visa)
as family visa under immigration, and business under Labor (so labor visa can sponsor family)
if you are separate visa (your sponsor can help you with this)
anyhow you should prove your working status, and salary over 10k or 7.5k plus accommodation, in this case you can sponsor your husband and your daughter.