StatCrunchAssume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $32,000 and a standard deviation of $3000. If 100teachers are randomly selected, find the probability that their mean salary is greater than $32,500.GradebookO A. 0.3312eTextO B. 0.1312O C. 0.0475Accessible ResourO D. 0.9525Tools for SuccessMultimedia LibralSkills for SuccessPurchase OptionsDetaStudy PlanClick to select your answer and then click Check Answer.DiscussionsIMG 8704.jpgOpen fileAll parts showingClear AllCheck AnswerOpen fileShow allP Type here to search1:30 AM4/16/202144141PA16.

Given: μ=32000, σ=3000, n=100 The corresponding z-value needed to be computed is:

Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $32,000 and a standard deviation of $ teachers are randomly selected, find the probability that their mean salary is greater than $32,500. O A. 0.3312 O B. 0.1312 OC. 0.0475 esou O D. 0.9525 access Libra Success Option

Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $32,000 and a standard deviation of $ teachers are randomly selected, find the probability that their mean salary is greater than $32,500. O A. 0.3312 O B. 0.1312 OC. 0.0475 esou O D. 0.9525 access Libra Success Option

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers has maintained careful records regarding the time to prepare a return. The mean time to prepare a return is 90 minutes, and the population standard deviation of this distribution is 15 minutes. Suppose 140 returns from this year are selected and analyzed regarding the preparation time. What is the probability that the mean time for the sample of 140 returns for this year is greater than 92? Multiple Choice Approximately 0 0.0639 0.4361 0.0571
Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on average, 28 minutes with a standard deviation of 10 minutes. In a given time, a bus transported passengers 40 times. What is the probability that the average transport time was greater than 30 minutes? Assume the mean time is measured to the nearest minute
Prices of homes in Raleigh, North Carolina are Normally distributed with a mean of $231,600 and a standard deviation of $38,550. What is the probability that the mean price of an SRS of 75 homes is more than $240,000? 0.0296 0.4272 O 0.2847 0.9173
In 2008, the per capita consumption of soft drinks in Country A was reported to be 19.11 gallons. Assume that the per capita consumption of soft drinks in Country A is approximately normally distributed, with a mean of 19.11 gallons and a standard deviation of 5 gallons. a. What is the probability that someone in Country A consumed more than 14 gallons of soft drinks in 2008? The probability is_____
The number of sales that a car salesperson makes per month is normally distributed with mean 15 and standard deviation 4 . a. Find the probability that a randomly selected car salesperson will sell more than 14 cars this month.b. What is the average number of cars that a group of 25 sales people must sell to be in the 90thpercentile?
The average weekly unemployment benefit in Idaho is $272. Suppose that the benefits are normally distributed with a standard deviation of $43. Find the probability that the average weekly u employment benefit of a random sample of 15 benefits chosen in Idaho is less than U.S. average, which is $299.
The time that a customer takes to complete a transaction in the business line at the bank follows a normal distribution with a mean of 5.4 minutes and a standard deviation of 1.7 minutes Above how many minutes will 20% of the customers spend in completing a transaction? O a. 6.115 O b. 0.4207 Ос. 0.84 O d. 6.828
A particular fruit's weights are normally distributed, with a mean of 342 grams and a standard deviation of 9 grams. If you pick 12 fruit at random, what is the probability that their mean weight will be between 337 grams and 339 grams Submit Question a m D hp
A report stated that after obtaining a bachelor's degree, 43% of college students enroll in a graduate degree program. For a random sample of 61 undergraduate students, find the mean, variance and standard deviation for the number of students who will enroll in a graduate degree program after obtaining a bachelor's degree. a.) mean b.) variance c.) standard deviation (round to two decimal places)
1.Calculate the probability of the height being less than 300, if the distribution of height was normal. Use the mean and standard deviations 2.Generate a graph to describe the distribution of height and insert it below. Would you think that the assumption that height was normal is accurate? Why or why not? Are speed and height associated? Why or why not? Generate a graph or table that supports.
The top-selling Red and Voss tire is rated 70000 miles, which means nothing. In fact, the distance the tires can run until wear-out is a normally distributed random variable with a mean of 82000 miles and a standard deviation of 7000 miles. A. What is the probability that the tire wears out before 70000 miles? Probability = B. What is the probability that a tire lasts more than 87000 miles? Probability =