The distribution of weekly salaries at a large company is right skewed with a mean of $1000 and a standard deviation of $350. What is the probability that the sampling error made in estimating the mean weekly salary for all employees of the company by the mean of a random sample of weekly salaries of 50 employees will be at most $50?
A) 0.3438
B) 0.6876
C) 0.3124
D) Cannot be determined, because the distribution of the population is not normal.