5. (2 marks) Consider your area of study (marketing, accounting, etc). Provide an example of a study you might carry out which would require the use of the Paired Difference t Procedure. Briey explain the problem you would investigate, how it relates to your area of study, and why the Paired Difference t Procedure would be necessary. Note: While this question will be marked relatively leniently, it is still a real question. Better answers will receive better marks