Mathematics, 10.05.2021 20:50 kprincess16r
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Imani was curious if there was a relationship between one hand being longer than the other and one foot
being longer than the other for students at her school. She measured the hands and feet of 100 randomly
selected students. Here is a summary of the data and the results from a chi-square test:
Chi-square test: Longer hand vs. longer foot
Right foot longer Left foot longer Both feet same
Right hand longer
11
3
8
Expected
5.50
5.50
11.00
Left hand longer
2
9
14
Expected
6.25
6.25
12.50
Both hands same
12
13
28
Expected
13.25
13.25
26.50
x? = 11.942, DF = 4, P-value = 0.018
Assume that all conditions for inference were met.
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