The current advertising campaign for Red Bull would be changed if less than30% of consumers like it.

a Formulate the null and alternative hypotheses.

b Discuss the Type I and Type II errors that could occur in hypothesistesting.

c Which statistical test would you use? Why?

d A random sample of 300 consumers was surveyed and 84 participantsindicated that they liked the campaign. Should the campaign bechanged? Why?

Please solve this step by step