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 cm and a standard deviation of 0.05 cm, the probability that Claude's sample has a mean greater than 120.0125 cm is ___.
A) 0.0124
B) 0.0062
C) 0.4938
D) 0.9752
E) 1.0000
Correct Answer:
Verified
Correct Answer:
Verified
Q19: If the population proportion is 0.90 and
Q23: Suppose a population has a mean of
Q32: According to the central limit theorem,
Q34: In an instant lottery, your chance of
Q35: The sampling distribution of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB1679/.jpg" alt="The
Q41: Decreasing the sample size causes the sampling
Q42: Let x be a binomial random variable
Q47: Suppose a population has a mean of
Q53: According to the central limit theorem, if
Q63: A sampling distribution is the distribution of