$1.$ Develop the null and alternative hypotheses according to the following statements:

$(1)$ I doubt that your consumer satisfaction score from the suggested marketing strategy on average is no more than $78\%.(2)$ I am going to sue the company because their medicine does not contain an average of $82$ mg VitaminB as what their influencer said in their auction platform.$(3)$ Although I would believe that the quality of the jacket I bought can last for at least $10$ years, I still need to confirm.$(4)$ I believe that the effect of our current marketing strategy is $10\%$ better than that of the previous one.