B1 Managers of a supermarket chain want to ?nd out. how characteristics of their shopsaffect the spending of the customers. The characteristics of interest are whethermusic is played in the shops or not, whether there is a designated area for specialcheap offers or whether these special offers are instead presented mixed with normaloffers in the departments to which they belong, and whether advertising banners inthe shop should focus on prices or on images of products. Explain how the managerscould run an experiment to learn about this. Discuss the most important practicalaspects and potential problems. [12]B2 Statistics departments in the UK are interested in ?nding out whether the studentsperformance in their courses is in?uenced by whether or not Lecturecast recordingsof the lectures are provided on Moodle, and by whether or not the students getfull solutions for the exercise sheets. Explain how the departments could run anexperiment to learn about this. Discuss the most important practical aspects and potential problems. [12]
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