How do you up come up with a null and alternative hypothesis for a survey?

I'm so confused! I surveyed 20 people and asked them how many t.v's they owned in their household?|||Your hypothesis is what you predict the study will prove to be true. The null hypothesis is the opisite of your hypothesis. For example, I conduct a study of 20 households to find out how many have multiple TVs. Before I conduct the study I hypithesize that a minimum of 75% (15 homes) will have 2 or more TVs. The null hypothsis is less than 75% of homes surveyed have 2 or more TVs