Thursday
December 18, 2014

Homework Help: Statistics

Posted by Hanna on Tuesday, March 31, 2009 at 11:34pm.

I really need help with this problem. I am not sure what the question is asking and how to approach it! Thanks in advance!

Its known that 2/3 of humans have a dominant right foot or eye. Is there also a right-sided dominance in kissing behaviour? In a sample of 124 kissing couples, both people in 80 of the couples leaned more rightward than leftward.

a)If 2/3 of ALL kissing couples have this right-leaning behavior, whats the probability that the number in a sample of 124 who do so differs from the expected value by at least as much as what was actually observed?

b)Does the result of the experiment suggest that 2/3 figure is implausible for kissing behavior? state and test the appropriate hypotheses.

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