Multiple Choice
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 has a mean length of 120 inches and a standard deviation of 0.05 inch,the probability that Claude's sample has a mean between 119.985 and 120.0125 inches is ____________.
A) 0.9925
B) 0.9974
C) 0.9876
D) 0.9544
E) 0.9044
Correct Answer:
Verified
Correct Answer:
Verified
Q17: In a random sampling technique, every unit
Q28: The mean of the sample means is
Q44: A major limitation of nonrandom samples is
Q63: A sampling distribution is the distribution of
Q65: In an instant lottery,your chance of winning
Q66: Increasing the sample size causes the numerical
Q67: Suppose a population has a mean of
Q68: Alice Zhong is the VP of operations
Q71: Suppose 65% of all college students have
Q72: A population list,map,directory,or other source used to