Do you prefer taking tests on paper or online?

A college instructor gave identical tests to two randomly sampled groups of 35 students. One group took the test on paper and the other took it online. Following are the test scores.

Can you conclude that there is a difference in the mean score between paper and online testing? Use the α = 0.05 level of significance.

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79 75 49 Paper 78 73 81 70 63 79 65 60 74 64 64 74 69 57 65 61 61 58 92 71 69 66 71 68 67 81 78 80 76 67 49 56 45 Online 79 75 75 71 81 56 72 49 75 63 81 74 72 71 73 83 59 78 65 53 47 63 82 81 76 65 82 78 76 65 72 85 84 81 50 79