Last year it was recorded that among the 2,896 students in the school district, 1,325 have visited the school nurse. You believe that the proportion of students who visited the school nurse this year has changed, and decide to test this using a 0.1 level of significance. Of a sample of 300 students in a school district, 153 have visited the school nurse. Match the variable to its value. 1. P 2. Po 3. n 0.458 0.51 300