46. Sensory Systems
Sensory System
2:54 minutes
Problem 9b
Textbook Question
Textbook QuestionScientists collected data on the date of onset of the menstrual cycles in a group of women who moved into a college dormitory together in the fall. The y-axis of the graph shows the mean difference (in days) between the onset of a woman's cycle and the average onset date of the rest of the women. Evaluate whether these data provide evidence for the existence of a human pheromone.
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