A carload of steel rods has arrived at Cybermatic Construction Company. The car contains 50,000 rods. Claude Ong,manager of Quality Assurance,directs his crew measure the lengths of 100 randomly selected rods. If the population of rods have a mean length of 120 inches and a standard deviation of 0.05 inch,the probability that Claude's sample has a mean less than 119.985 inches is _____________.
A) 0.9974
B) 0.0026
C) 0.4987
D) 0.0013
E) 0.0030

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The Answer of A carload of steel rods has arrived at Cybermatic Construction Company. The car contains 50,000 rods. Claude Ong,manager of Quality Assurance,directs his crew measure the lengths of 100 randomly selected rods. If the population of rods have a mean length of 120 inches and a standard deviation of 0.05 inch,the probability that Claude's sample has a mean less than 119.985 inches is _____________.
A) 0.9974
B) 0.0026
C) 0.4987
D) 0.0013
E) 0.0030

A Carload of Steel Rods Has Arrived at Cybermatic Construction