2B. A shareholders' group, 111 Lodglng a protest, claimed that the mean tenure 1or a chief executive ofcer [EEG] was at least nine years. A survey of companies reported ir The Wall StreetJoumcl found a sample mean tenure of if - '12? years for CEDs with a standard deviation of s - 5.33 years {The \"ll Street Journal, January 2, 200?]. a. Formulate hypotheses that can he used to challenge the validity of the claim made by the shareholders' group. b. Assume 85 companies were included in the sample. What is the pvalue for your hypothesis test? c. At a - .01, what is your conclusion