The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard deviation of $22,400 pesos. What is the probability that a randomly selected bank manager has a salary of more than $105,000 pesos per hour? a. 0.8067745 b. 114306.8 c. 0.1932255 d. neither option is correc

The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard deviation of $22,400 pesos. What is the probability that a randomly selected bank manager has a salary of more than $105,000 pesos per hour? a. 0.8067745 b. 114306.8 c. 0.1932255 d. neither option is correc

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

aanswer pleeasea:
The average smartphone user used 606 megabytes of data per month. Assume the standard deviation of data usage was 240 megabytes per month. A random sample of 60 smartphone users was selected. a. What is the expected value of the sample mean? b. What is the standard deviation of the sample mean? c. What is the probability that the averaged amount of data used in this sample was between 540 and 580?
Suppose that the number of points scored in a game comes from a normal population with an average of 12 points and a standard deviation of 9 points. Estimate the chance that the average points scored in ten randomly selected games will exceed 14.2 points. A. 0.4034 B. 0.0073 C. 0.2198 D. 0.2297
4. The average salary for first-year teachers is $27,989. Assume the distribution is approximately normal with standard deviation $3250. a. What is the probability that a randomly selected first-year teacher makes between $20,000 and $30,000 each year? b. What is the probability that a randomly selected first-year teacher has a salary less than $20,000?
The number of ants per acre in the forest is normally distributed with mean 42,000 and standard deviation 12,360. Let X = number of ants in a randomly selected acre of the forest. Round all answers to 4 decimal places where possible.a. Find the probability that a randomly selected acre in the forest has fewer than 39,689 ants. b. Find the probability that a randomly selected acre has between 43,391 and 54,397 ants. c. Find the first quartile. ants (round your answer to a whole number)
2) The mean monthly rent for a one-bedroom apartment without a doorman in Manhattan is $ 2,639. Assume the standard deviation is $500. A real estate firm samples 100 apartments. What is the probability that the average rent of the sample is more than $ 2,685?
Suppose that the average loan taken out by small-sized businesses from a commercial bank is $275,000. If the loan sizes are normally distributed with a standard deviation of $25,000, find each of the following: A. The probability that a small-sized business takes out a loan of more than $325,000. B. The probability that a small-sized business takes out a loan between $245,000 & $310,000.
The number of ants per acre in the forest is normally distributed with mean 42,000 and standard deviation 12,221. Let X = number of ants in a randomly selected acre of the forest. Round all answers to 4 decimal places where possible. b. Find the probability that a randomly selected acre in the forest has fewer than 32,793 ants. c. Find the probability that a randomly selected acre has between 46,676 and 51,692 ants. d. Find the first quartile. ? ants (round your answer to a whole number) PLEASE ANSWER THE 3 SUBS B, C AND D
1. The full weight of a brand of a pack of sweet potato fries is a random variable with u = 450 g and 6 = 5.1 g. Assume that you pick a random of pack from the population. a. Find the proportion of packs that contain less than 440g.
1. The average number of acres burned by forest and range fires in a large New Mexico county is 4,255 acres per year, with a standard deviation of 744 acres. The distribution of the number of acres burned is normal. a.) What is the probability that between 2,540 and 4,190 acres will be burned in any given year? b.)What number of burnt acres corresponds to the 38th percentile?
45. Suppöse the average height of NBA players is normally distributed with mean 200cm and standard deviation 8.89cm. What is the probabilíty that a randomly selected players will have a height between 190cm and 210cm? M= 200 a. 0.7288 b. 0.7372 8=8.89 C. 0.1314 d. 0.7698 e. 0.8686
6. Assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz and a standard deviation of 0.11 oz. a. Find the probability that a single can of Coke has at least 12.19 oz. b. Find the probability that a pack of 36 cans of Coke have a mean of at least 12.19 oz. c. Suppose you measured the cans of a random 36-pack and got a sample mean of 12.19 oz. Is it reasonable to assume that the actual population mean is 12.00 oz? Why or why not?