Expectations

For these questions, you are given brief summaries of research scenarios and specific hypotheses. You need to choose which statistical test is appropriate to analyze the hypothesis given the context of the research scenario. Each scenario is worth 5 marks. 1 mark is for correctly identifying the appropriate statistical test. An additional 4 marks are awarded for justifying your answer with respect to 1. The type of data collected by researchers (i.e., continuous, ordinal, or nominal) 2. Whether researchers are investigating an association/relationship between at least two variables or are instead investigating differences between conditions using the same variable 3. If applicable, the number of conditions and/or factors 4. If applicable, the independence/dependence of observations between conditions You may format your answers as either short paragraphs or bullet lists. Question 5

A self-proclaimed health and wellness company contracted statisticians to examine the efficacy of their newly developed dieting program. They provided the statisticians with data from a publicized weight loss competition that they hosted to advertise the release of their new product. For the competition, participants completed the dieting program and were ranked in order of the amount of weight they lost pre- and post-completion of the program. What statistical analysis could the statisticians perform to assess the efficacy of the dieting program?