A university radio station has been airing a public service announcement (PSA)that gives a telephone number students can call to get information on upcoming campus events.In order to determine the optimal number of times per day to run the PSA,the station has been counting the number of calls generated each day as a function of the number of times the PSA was aired.The results of the experiment are summarized in the table below. 
a)Re-express the data by squaring the number of calls per day,then plot the re-expressed data as a scatterplot. 
b)Determine the regression equation and correlation coefficient for the re-expressed data.
c)Interpret the slope of your model.Comment on the meaning and usefulness of this slope.
Definitions:
Safety Inventory
Additional stock kept to mitigate the risk of stockouts due to fluctuations in demand or supply lead times.
Cycle Inventory
Inventory that is held or processed in batches, cycling through the production and supply chain processes.
Retailers
Businesses or individuals that purchase goods from manufacturers or wholesalers to sell them directly to consumers.
Safety Inventory
Additional stock that is kept in reserve to protect against stockouts caused by variability in demand or supply.
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