Appendix B: Statistics
A .05 alpha-level is used for all tests.
Test 1
H0 : Sudoku Grader grade for “5 of 5” Dispatch puzzles = Sudoku Grader grade for
“Difficult” NYTimes.com puzzles
HA : Sudoku Grader grade for “5 of 5” Dispatch puzzles < Sudoku Grader grade for
“Difficult” NYTimes.com puzzles
Conclusion
p-value<.05, so evidence suggests that the Sudoku Grader grade for “5 of 5” Dispatch puzzles < Sudoku Grader grade for “Difficult” NYTimes.com puzzles
Test 2
H0 : Sudoku Grader grade for “5 of 5” Dispatch puzzles = Sudoku Grader grade for
“Demanding” Shortz puzzles
HA : Sudoku Grader grade for “5 of 5” Dispatch puzzles < Sudoku Grader grade for
“Demanding” Shortz puzzles
Conclusion
p-value<.05, so evidence suggests that the Sudoku Grader grade for “5 of 5” Dispatch puzzles < Sudoku Grader grade for “Demanding” Shortz puzzles
September 10th, 2010 at 8:14 pm #JULIAN
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