# Question: As shown in Example 6 12 incomes of junior executives are

As shown in Example 6.12, incomes of junior executives are normally distributed with a standard deviation of $3828.

a. What is the mean for the salaries of junior executives, if a salary of $62,900 is at the top end of the middle 80% of incomes?

b. With the additional information learned in part a, what is the probability that ahand/mWw lligt5ydljustjarga.com executive earns less than $50,000?

a. What is the mean for the salaries of junior executives, if a salary of $62,900 is at the top end of the middle 80% of incomes?

b. With the additional information learned in part a, what is the probability that ahand/mWw lligt5ydljustjarga.com executive earns less than $50,000?

## Answer to relevant Questions

According to ACT, results from the 2008 ACT test-ing found that students had a mean reading score of 21.4 with a standard deviation of 6.0. Assuming that the scores are normally distributed, a. find the probability that a ...A radar unit is used to measure the speed of auto-mobiles on an expressway during rush-hour traffic. The speeds of individual automobiles are normally distributed with a mean of 62 mph. a. Find the standard deviation of all ...a. Generate a random sample of 100 data from a normal distribution with mean 50 and standard deviation 12. b. Using the random sample of 100 data found in part a and the technology commands for calculating ordinate values on ...Draw a figure of the standard normal curve showing: a. Z(0.04) b. Z(0.94) The z notation, z (a), combines two related concepts, the z-score and the area to the right, into a mathematical symbol. Identify the letter in each of the following as being a z-score or an area, and then with the aid of a ...Post your question