The superintendent at a local school district is concerned about the number of students at the high school

arriving late. The school reports that 4% of its students arrive after the start of the school day. The

superintendent suspects that this is higher than the school claims. She conducts a hypothesis test on an SRS of

250 student arrivals in a given week and finds that 13 of them are late. Does she have convincing evidence that

the school is incorrect? Use a 5% level of significance.