The following table summarizes findings from a study done by Apple concerning working conditions in factories operated by its suppliers.9 Under pressure from consumers concerned about working conditions in China, Apple visited its suppliers and evaluated the labor conditions. Several problem areas surfaced.

(a) Would it be appropriate to summarize these responses together in a single bar chart?
(b) What sort of chart would you recommend to summarize these results?

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Percentage Issue Supplier does not limit working 62 hours per week. Supplier does not comply with 32 rules for hazardous substances Supplier does not follow Apples 35 safety standards