Question #: 8 For a random that us normally distributed with mean equal to 13m and standard deviation equal to 150, determine the probability that a simple random sample oils items will have a mean that is between 1425 and 1550. A. 0.0049 B. 0.9938 C. 0.8944- D'. 0.0994 E. none ofthe above Quesen #: 9 For a random that us normally distributed with mean equal to 1300 and standard deviation equal to 150, determine the probability that a simple random sample oils items will have a mean that Em than L250. A. 0.138?" B. 0.3035 C. 0.9938 D. 0.8413 E. none oftbe above Question #: 10 For large simple random samples from art}.r population, the standard ermr ofle sampling dislribuon oftbe mean will A. Increase as the sample size becomes larger B. Decrease as the sample size becomes larger C. Be unchanged as the sample size becomes larger D. None oftbe above