An Aptitude Test Is Given to Trainees on a High-Tech $98,92,95,85,80,78,75,83,82,95,92,87,80,65,92,93,82,98,93,72,70$

Essay

An aptitude test is given to trainees on a high-tech form. Here are the grades on the test in the order that the trainees completed the test:
$98,92,95,85,80,78,75,83,82,95,92,87,80,65,92,93,82,98,93,72,70$ .
Test whether the trainees finished the test in random order with regard to grades. Use $\alpha=0.01$ .