A quality manager at Newvis Pharmaceutical Company is monitoring a process that fills vials with a liquid medication designed to prevent glaucoma in the eyes of the user. The company wants to ensure that each vial contains at least 60 ml. of the product. A sample of 25 vials is tested, and a mean of 63 ml. and a sample standard deviation of 10 ml. are found. The quality manager wishes to test the null hypothesis that vials contain less than or equal to 60 ml. using an α = 0.05 significance level (rejecting this hypothesis provides evidence that the vials contain the required amount.) Conduct the test, what is the value of the test statistic? (Please keep one decimal.)