Suppose a data set from a bike share company contains the number of daily bike rentals at each of 6 stations for the 23 weekdays of a particular month, i.e. we have Yij for 1,..., 23 and j 1,...6. Write down a hierarchical normal model that can be || %3D used to estimate the mean number of bike rentals at each station. You can assume that che unknown variance o? of the number of bike rentals is the same for each station.

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