It is desired to determine which class - live or online - performs better on a business statistics exam. Random and independent samples from each...

It is desired to determine which class - live or online - performs better on a business statistics exam. Random and independent samples from each type of class are selected. The data is entered into a software package and the results are analyzed.

Which of the following alternative hypotheses would you test to determine if the online class has a higher population mean exam score than the live class. 

  live-online>0

  live-online=0

  live-online <0