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Drunk driving is one of the main causes of car accidents. Interviews with drunk drivers who have been involved in accidents have revealed that one

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Drunk driving is one of the main causes of car accidents. Interviews with drunk drivers who have been involved in accidents have revealed that one of the main problems is that drivers do not realize that they are impaired, thinking "I only had 1-2 drinks I am 0K to drive.\" A sample of 20 drivers was chosen, and their reaction times in an obstacle course were measured before and after drinking two beers. The purpose of this study was to check whether drivers are impaired after drinking two beers. 1. What type of design is most appropriate for this analysis? (1 mark) 2. What are the hypotheses? {2 marks) 3. Perform the most appropriate t-test to compare the two conditions. Attach a PDF copy of your jamovi output. Include the following information: a. Exploration of the data. Include descriptive statistics and figures. Indicate the mean, standard error, standard deviation, and number of observations for each group in a table. (4 marks) b. Results. Include the following results written in APA format: normality test (indicate whether you should proceed with a parametric or non-parametric test), t-test result, and effect size (indicate whether your results have a small, medium, or large effect size). (5 marks) c. Figure. Create a bar graph illustrating your results (can be constructed using any software program including Excel}. (3 marks) 4. Write a description of your results using words and figures in APA format explaining what you can conclude from this study and whether you feel the results are practically significant. {3 marks)

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