A hypothesis test is performed at the 10% significance level to determine if the mean time of faculty contact (in hours per week) with students at research universities and non-research universities are different. The hypotheses were determined and data was collected in the table below for both samples.

• H0:12, Ha:1<2
• =0.1

	Sample Size	Sample Mean	Sample St. Dev.
Research	20	9.7	1.7
Non-Research	16	16.8	3.2

What is the test statistic (t-value) for this two-mean hypothesis test?