A school is considering two different videos for a class. Students have been randomly assigned to two groups, and they all take the same written exam after viewing the video. The scores are summarized below:

Video 1: Sample mean = 75, sample standard deviation= 7.3, Sample size = 27

Video 2: sample mean = 82, sample standard deviation = 8.2, sample size = 23

Conduct an analysis to determine whether there is difference in the test scores for the two videos. Provide the degrees of freedom. Round to 4 decimal places. Attach the Excel file used.