please help me to answer the questions i know its not complete question just want to know how to write in null and alternative way and which test match on these situation

The goal of the management is that the mean preference equal to 5.0. Formulate the null (H0) and the alternative (H1) hypotheses and specify the appropriate test.

Do the customers evaluate the products more favorable on quality than they do on affordability? Formulate the null (H0) and the alternative (H1) hypotheses and specify the appropriate test.