A community psychologist selects a sample of 16 local police officers to test whether their physical endurance is better than the median score of 74. She measures their physical endurance on a 100-point physical endurance rating scale.
Performance Scores | |||
---|---|---|---|
65 | 82 | 79 | 91 |
92 | 85 | 94 | 96 |
72 | 61 | 81 | 88 |
56 | 80 | 97 | 87 |
Based on the data given above, compute the one-sample sign test
at a 0.05 level of significance.
x =
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