How to formulate hypothesis (null and alternative) for one sample t-test in marketing research:

I want to check if the participants will purchase the product withing 5 months (1=totally disagree to 7 definately agree), which option should I follow and are these correct options (if not can you provide with better example?

a) do I say H1=7 and H0 7

b) H0: There is no significant that the participant will definately agree that they will purchase the product withing 5 months.

H1: There is a significant that the participant will definately agree that they will purchase the product withing 5 months.