The annual salary for one particular occupation is normally distributed, with a mean of about $121,000 and a standard deviation of about $18,000. Random samples of 40 are drawn from this population, and the mean of each sample is determined. Find the mean and standard deviation of the sampling distribution of these sample means. Then, sketch a graph of the sampling distribution. The mean is u- = , and the standard deviation is of = (Round to the nearest integer as needed. Do not include the $ symbol in your answers ) Sketch a graph of the sampling distribution. Choose the correct answer below. O A. O B. O C. OD. 17,732 19,132 20,532 10 132 19,132 28,132 67,000 121,000 175,000 112,000 121,000 130,000 Mean salary (in dollars) Mean salary (in dollars) Mean salary (in dollars) Mean salary (in dollars)