A company is testing a new weight-loss supplement. For the study, the company enrolled 189 obese or overweight middle-aged people who agreed to take a weight-loss supplement for eight weeks. Half took the supplements and half took a placebo. A representative portion of their results is shown in the table below. What conclusions can you draw from this portion of the results?

Question

undeadknight26 · Answer

attachment

undeadknight26 · Answer

@hugsnotughs

undeadknight26 · Answer

@somy
@OpenStudyRocks5* @rational @welshfella @dan815 @Joel_the_boss @confluxepic @mathstudent55

anonymous · Answer

try answering yourself, using the following tools:

- calculate the mean weight change for both groups
- compare the mean weight change

- calculate the standard deviation in weight change for both groups
- if the curves overlap widely, you need additional testing. if they are clearly separated, then you probably don't.

undeadknight26 · Answer

@.@ 
Holy **** x.x

somy · Answer

thats in case if you are given the time to do it 
meaning do you guys 'usually' solve this problem in details?