To study the effect of womens tears on men, levels of testosterone are measured in 50 men

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To study the effect of women’s tears on men, levels of testosterone are measured in 50 men after they sniff women’s tears and after they sniff a salt solution. The order of the two treatments was randomized and the study was double-blind.


A data collection method is described to investigate a difference in means. In each case, determine which data analysis method is more appropriate: paired data difference in means or difference in means with two separate groups.

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Statistics Unlocking The Power Of Data

ISBN: 9780470601877

1st Edition

Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock

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