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Pearson Edexcel Level 3 GCE 9ST0/03 2022 Statistics Advanced PAPER 3: Statistics in Practice

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Answer ALL questions. Write your answers in the spaces provided. 1 Following an illness, patients might need therapy in order to help improve their balance. The therapy offered is called standard ba ... lance training. Giovanni, a physiotherapist, thinks that his patients may be helped further by using a video game designed to improve balance. He designs an experiment to test his theory. He randomly assigns patients to one of two groups. One group receives a course of therapy including standard balance training and the video game. The other group receives only standard balance training. (a) State which of the two groups described above is the control group. (1) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ (b) Explain, in context, why Giovanni randomly assigns each patient to one of the two groups. (1) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ (c) Explain why Giovanni’s experiment design is not double-blind. (1) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _________________________________________________ [Show More]

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