Doctoral Student Salaries Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally distributed with a standard
deviation of $1500, find these probabilities. Round the final answers to at least four decimal places and intermediate z-value calculations to two decimal places.
Part 1 of 2
(a) The student makes more than $13,900.
P(X > 13,900) 0.2389
Part: 1/2
Part 2 of 2
(b) The student makes between $13,800 and $14,800.
P(13,800 < X <14,800)-☐