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mamabearkl2014 mamabearkl2014
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9 years ago
. A recent study reports that older adults who got regular physical exercise (as measured by a pedometer) experienced fewer symptoms of depression, even when tested 2 years later. Following are hypothetical data similar to the results obtained in this study.

a.   Calculate the mean and standard deviation for each group of scores




b.    Based on the statistics from part a, does there appear to e a difference between the two groups?



Regular Exercise    No regular exercise
1   5
3   4
4   6
3   3
5   5
2   7
3   6
4   6



The deadline for this assignment is 11:59 PM EST on Sunday of Week 1
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wrote...
9 years ago
Quote
a. Calculate the mean and standard deviation for each group of scores

regular
mean= (1+3+4+3+5+2+3+4) /8 =25/8=3.125
Stdev= ( ( 1-3.125)^2 +(3-3.125)^2+…..)^.5
= .166

not regular
Mean= 5+4+6+3+5+7+6+6/8 =42/8 =5.25
Stdev= ((5-5.25)^2+(4-5.25)^2+…)^.5 =1.199
Quote
b. Based on the statistics from part a, does there appear to e a difference between the two groups?
Yes. Mean and std dev for no regular group is higher
wrote...
Staff Member
9 years ago
Hey, see if this helps
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biolove,  padre,  sweettart507
Ask another question, I may be able to help!
wrote...
9 years ago
Thank you all so much !!
wrote...
Donated
Trusted Member
9 years ago
who gets best answer ?
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