What is the test statistic?A. Z = -1.58B. Z = 1.58Z. Z = -2.5D. Z = 2.5

questions 12-15, use the following scenario: 017, 20.1% of all high school students in the U.S. had a job. A school official from a district though percentage of high school students who had a job in that school district was higher than the national portion. She took a random sample of 285 high school students and found that 64 of had a job