Homework Help: statistics

Posted by Anonymous on Monday, June 11, 2012 at 8:08pm.

drug company promises to help people lose at least 3 pounds per week. 15 people use the drug. they lose an average of 2.8 lbs per week with a standard deviation of .5lbs. is this a left tail or right tail and why?

statistics - PsyDAG, Tuesday, June 12, 2012 at 12:28pm
I am not sure what you are asking.

If you are asking if the distribution is positively or negatively skewed, there is no indication of either.

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