At a large university, first-year students are required to take an introduction to writing class. Students are given a survey on their attitudes toward writing at the beginning and end of the class. Based on the survey results, each student receives a score between 0 and 100 (the higher the score, the more favorable the attitude toward writing). The scores of nine different students from the beginning and end of the class are given below:

Beginning 77.6 86.1 62.1 93.1 74.6 42.0 86.9 79.3 80.2

End 85.4 83.2 64.2 96.6 79.3 40.5 87.2 89.2 85.6

Test the claim that the scores improve from the beginning to the end of the class.

Please show using R Studio.