Only 6.45 answer

(e) rind (521 210) is smaller than, equal to, or larger than the answer obtained in Exercise 6.41, part (d)? Now calculate P(x > 210). 6.44 At a large factory, the mean wage is $42,500 and the standard deviation is $2000. What is the probability that the mean wage of 75 randomly selected workers will exceed $43,000? 6.45 At a city high school, past records indicate that the MSAT scores for students have a mean of 510 and a standard deviation of 90. One hundred students in the high school are to take the test. What is the probability that their mean score will be (a) More than 530? (b) Less than 500? (c) Between 495 and 515