A school boasts that its students score better than the national average of 75 on a standardized test. Based on the sample of scores provided in scores.csv, use a ? test to evaluate this claim. First do the calculation by hand. Then perform the test in R and compare your results.

A B Score 2 62 89 4 97 78 76 80 84 LO CO 86 10 71 11 73 12 92 13 57 14 99 15 88 16 77 17 75 18 70 19 75 20 78 21 81 22 72 23 86 24 90 25 6926 85 27 71 28 84 29 75 30 83 31 96 32