Chicago State University Use of ANOVA and Graphical Methods Discussion

I’m studying for my Business class and need an explanation.

A market researcher is interested in knowing the type of training that works best for DVD users. Thirty consumers are randomly selected from a population of known DVD owners (i.e., users). Ten users are trained by giving them the DVD user’s manual and allowing them to read it. Another 10 users are trained from a 30-minute DVD user training video. Another 10 users are trained from a self-paced computer tutorial. The users are then timed in their ability to setup and program the DVD by performing a series of operations. Which statistical analysis technique should be used? – What is the null hypothesis? – Can the market researcher get an answer? – Why or why not? Remember to cite and list peer reviewed source to justify your statements.