A research done by a graduating student reports that the average score of University students in statistics course is less than 80. To test this claimr a random sample of 'l 0 students was taken and their scores in the course are recorded as: 65,70, 80, Si 60, 90, 8E], 75, 851 90. What statistical test is appropriate for the given data? Select the correct response; one~sample t- test none of the above two samples ttest _ Z-IESI