Finding values symmetrically distributed around mean

Reference no: EM1315055

Q1) Breaking strength of plastic bags used for packaging produce is usually distributed; with mean of 5 pounds per square inch and standard deviation of 1.5 pounds per square inch. Determine the proportion of bags have breaking strength of

a) Less than 3.17 pounds per square inch?

b) At least 3.6 pounds per square inch?

c) Between 5 and 5.5 pounds per square inch?

d) 95% of breaking strengths will be contained between what two values symmetrically distributed around mean?

Reference no: EM1315055

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