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Graphical display and box plot for hours of use for computer

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Current Supplier Alternative 1 Supplier Alternative 2 Supplier
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The above lists the hours of use for computer discs.

a) Make a graphical display of the three categories of data
b) Based on the data and your displays, which supplier would you recommend to your boss?
c) Find the mean, median, range and standard deviation for each supplier
d) Make a box plot for the Alternative 1 supplier.
e) Find the interquartile range for Alternative 1 supplier.

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A complete, neat and step-by-step solution is provided regarding the graphical display and box plot for hours of use for computer in the attached Excel file.

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