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# Statistical Analysis Techniques: ANOVA and Post-Hoc Tests

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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 ten users are trained from a 30 minute DVD user training video. Another ten 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?

##### Solution Summary

The solution discusses the statistical analysis technique such as ANOVA and post-hoc tests and all detailes involved in the test such as null hypothesis, p-value and so on.

##### Solution Preview

Since there are 3 groups with 10 users in each group, we can use Analysis of Variance (abbreviation: ANOVA) as the statistical analysis technique. We usually use ANOVA to test the means of three groups. Using this analysis, it would help us figure out which type of ...

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.