I am having problems calculating the standard deviation, standard error and t test values using mostly negative numbers. Here is my data (which is the difference in scores)after a weightloss study: -3,-11,-9,2,-1,-11,3,-8,-7,-3.

Question

I am having problems calculating the standard deviation, standard error and t test values using mostly negative numbers. Here is my data (which is the difference  in scores)after a weightloss study: -3,-11,-9,2,-1,-11,3,-8,-7,-3.

anonymous · Answer

Hello,

I'm leaving soon, but I can direct you to some clips that may help, if you'd like?

anonymous · Answer

Standard deviation: http://www.khanacademy.org/v/statistics--standard-deviation?p=Statistics Standard error: http://www.khanacademy.org/v/standard-error-of-the-mean?p=Statistics t-test: http://www.youtube.com/watch?v=_mof61Totx4&feature=relmfu

anonymous · Answer

Thank you very much!