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 the probabilities. Use a TI-83 Plus/TI-84 Plus calculator and round the answer to at least four decimal places. Part: 0 / 2 Part 1 of 2 (a) The student makes more than $17,000. P(X>17,000) = |

Monthly Mortgage Payments The average monthly mortgage payment including principal and interest is $982 in the United States. If the standard deviation is approximately $180 and the mortgage payments are approximately normally distributed, find the probabilities. Use a TI-83 Plus/TI-84 Plus calculator and round the answers to at least four decimal places. Part: 0/ 2 Part 1 of 2 (a) The selected monthly payment is more than $1175. P (X>1175) = O

Height and weight: A national public health agency study states that the mean height for adult men in the United States is 68.2 inches with a standard deviation of 8 inches, and the mean weight is 194.8 pounds with a standard deviation of 63.8 pounds. Part: 0/3 Part 1 of 3 (a) Compute the coefficient of variation for height. Round the answer to at least three decimal places. The coefficient of variation for height is 6 LE d

Empirical research on stock market data indicates that over the course of a year, 60% of stocks go up. A random sample of 600 stocks is going to be chosen at the beginning of next year. Let p be the proportion of the stocks in the sample that go up over the course of a year. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p. 0 (b) Find the standard deviation of p. 0 (c) Compute an approximation for P(p>0.64), which is the probability that more than 64% of the stocks in the sample go up over the course of the year. Round your answer to four decimal places. X 5