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October 1, 2014

Homework Help: statistics

Posted by Byron on Wednesday, January 30, 2008 at 6:16pm.

sample- a recent study reports that older adults who got regular physical exercise experienced fewer symptoms of depression, even when tested 2 years late.

regular excersize scores= 1,3,4,3,5,2,3,4

no regular excersize scores=5,4,6,3,5,7,6,6

a)calculate the mean and the standard deviation for each group of score.

b)based on the statistics part, does there appear to be a difference between two groups?

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my numbers look off. please help? thank you.

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