See whether performance differed on sunny and cloudy days

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A researcher was interested in the effects of weather on cognitive performance. He tested participants on either sunny or cloudy days, and obtained the following scores on a 10-item test of cognitive performance.

Using these data, conduct a test to see whether performance differed on sunny and cloudy days.

Sunny Day Cloudy Day
7 7
1 4
3 1
9 7
6 5
6 2
8 9
2 6

Reference no: EM131322887

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