What percent of its wooden shipping boxes

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Wood shipping boxes are often recommended over cardboard shipping boxes because its strength tends to be higher, therefore, making it more durable and long-lasting. Based on data collected, Fedex determines that the breaking strength of most wooden shipping boxes are normally distributed with a mean of 500 pounds per square inch and a standard deviation of 20 pounds per square inch.

Based on the 68-95-99.7 Rule, about what percent of its wooden shipping boxes will have breaking strengths greater than 520 pounds per square inch

A. Approximately 16%

B. Approximately 1.3%

C. Approximately 20%

D. Approximately 32%

Reference no: EM131856603

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