Write the null and alternative hypotheses you would use to test each of the situations in parts (a) through (c). (a) A governor is concerned about his "negatives," that is, the percentage of state residents who express disapproval of his job performance. His political committee pays for a series of TV ads, hoping that they can keep the negatives below 70 %. They will use follow up polling to assess the ads' effectiveness. Upper H 0 : The governor's "negatives" are ▼ decreasing. equal to 70%. less than 70%. greater than 70%. the same. increasing. not 70%. Upper H Subscript Upper A Baseline : The governor's "negatives" are ▼ equal to 70%. less than 70%. decreasing. the same. increasing. not 70%. greater than 70%.