Salaries at a large corporation have a mean of $62,000 and a standard deviation of $32,000. If 100 employees are randomly selected, (a) o-$ Do not write the $ sign. No comma. (b) = 24 Do not write the $ sign. No comma. (c) what is the probability that their mean salary will be less than $60,000? Round answer to three decimal places. (d) what is the probability, according to the Empirical Rule, that their mean salary will be between $65,200 and $71,600? % Do not write the percent sign No rounding

Salaries at a large corporation have a mean of $62,000 and a standard deviation of $32,000. If 100 employees are randomly selected, (a) o-$ Do not write the $ sign. No comma. (b) = 24 Do not write the $ sign. No comma. (c) what is the probability that their mean salary will be less than $60,000? Round answer to three decimal places. (d) what is the probability, according to the Empirical Rule, that their mean salary will be between $65,200 and $71,600? % Do not write the percent sign No rounding

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

Ma1.
Citizens use an average of 650 pounds of paper a year. Suppose that the distribution is normal with a population standard deviation of 153.5 pounds. Suppose you take a random sample of 25 Citizens. What is the probability that the mean pounds of paper used in a year are between 500 and 700 pounds
JA researcher takes an SRS of 80 people who go golfing.The average to be u52 years old. It was also determined that the standard deviation of cac ot golfers was la What is the probability that the sample mean is kss. than 47 years old? age of all golferswas determined years.
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
Student scores on Professor of Stats final exam are normally distributed with a mean of 73 and a standard deviation of 6.5Find the probability of the following:**(use 4 decimal places)**a.) The probability that one student chosen at random scores above an 78. ________b.) The probability that 20 students chosen at random have a mean score above an 78. _________c.) The probability that one student chosen at random scores between a 68 and an 78. __________d.) The probability that 20 students chosen at random have a mean score between a 68 and an 78. __________
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
Help please!
Use your Ti-84 to find the mean and standard deviation of the discrete probability distribution below. Match your screen shot with the correct screen shot.
A professor know that her statistics students' final exam scores have a mean of 79 and a standard deviation of 12.8. In his class, an "A" is any exam score of 90 or higher. This quarter she has 23 students in her class. Wht is the probability that 6 students or more will score an "A" on the final exam?