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Eleven random subjects were tested to solve a randomly arranged Rubik's Cube on two different days...

Eleven random subjects were tested to solve a randomly arranged Rubik's Cube on two different days (Score 1 and Score 2, in minutes). We can assume that the population from which the subjects were selected is normally distributed. Was the Rubik's cube arrangement (prior to the test) of equal difficulty between days?

Subject# Score 1 Score 2
1 3 20
2 3 13
3 3 13
4 12 20
5 15 29
6 16 32
7 17 23
8 19 20
9 23 25
10 24 15
11 32 30
math   Statistics-And-Probability   
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