Business Weekly conducted a survey of graduates from several top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $160,000. Assume the standard deviation is $37,000. Suppose you take a simple random sample of 22 graduates. Round all answers to four decimal places if necessary. .What is the standard deviation of distribution of X? What is the standard deviation of X? For a single randomly selected graduate, find the probability that her salary is between $158,767 and $164,711. • For a simple random sample of 22 graduates, find the probability that the average salary is between $158,767 and $164,711. For part d), is the assumption of normal necessary?O YesONo

Business Weekly conducted a survey of graduates from several top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $160,000. Assume the standard deviation is $37,000. Suppose you take a simple random sample of 22 graduates. Round all answers to four decimal places if necessary. .What is the standard deviation of distribution of X? What is the standard deviation of X? For a single randomly selected graduate, find the probability that her salary is between $158,767 and $164,711. • For a simple random sample of 22 graduates, find the probability that the average salary is between $158,767 and $164,711. For part d), is the assumption of normal necessary?O YesONo

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

Someone claims that the systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 125. The population standard deviation is 18. A random sample of 45 adults having systolic blood pressure of 160. Find the test statistic. Z = (Round to one decimal)
Business Weekly conducted a survey of graduates from several top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $124,000. Assume the standard deviation is $42,000. Suppose you take a simple random sample of 17 graduates. Round all answers to four decimal places if necessary What is the standard deviation of ¯¯¯XX¯? For a single randomly selected graduate, find the probability that her salary is between $111,920 and $125,213. For a simple random sample of 17 graduates, find the probability that the average salary is between $111,920 and $125,213.
A fair coin is flipped 100 times . Find the mean and standard deviation for the number of tails for this distribution.
According to a recent survey, the salaries of assistant professors have a mean of $40,756 and a standard deviation of $7500 . Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors who earn more than $53,000 . Round your answer to at least four decimal places.
Business Weekly conducted a survey of graduates from several top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $185,000. Assume the standard deviation is $40,000. Suppose you take a simple random sample of 22 graduates. Round all answers to four decimal places if necessary. What is the standard deviation of distribution of X? 185,000 • What is the standard deviation of X? 40,000 • For a single randomly selected graduate, find the probability that her salary is between $175,608 and $186,672. 0.1070 • For a simple random sample of 22 graduates, find the probability that the average salary is between $175,608 and $186,672. 0.0912 For part d), is the assumption of normal necessary? O NoO Yes
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?
The following table shows the number of people that have either 0, 1, 2 or 3 cars registered in their name from a sample of 166 people. Complete the table. xx CountCount 0 45 1 43 2 32 3 46 Find the mean number of cars owned for this sample. Give your answer to at least 2 decimal places. Find the standard deviation of cars owned for this sample. Give your answer to at least 2 decimal places.
In a recent year, Washington State public school students taking a mathematics assessment test had a mean score of 276.1 and a standard deviation of 34.4. A random sample of 64 students is drawn from this population. Identify the mean and standard deviation of the sample mean scores. 2. Find the probability that the sample mean score is at least 285.
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?
Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $136,000. Assume the standard deviation is $39,000. Suppose you take a simple random sample of 9 graduates. Round all answers to four decimal places if necessary.
Find the z-scores that correspond to each value and determine whether any of the values are unusual.
A flooring company sells carpet by the metre off of a standard sized roll. The mean amount of carpet sold per month is known to have a normal distribution. If the probability of selling more than 1,000 metres per month is 0.0668 and the standard deviation is 100 metres, what is the mean amount of carpet sold? 900 1100 1150 850 The amount of coffee poured into a large coffee cup at the campus Tim Horton's has a distribution that is skewed to the right with a mean of 600 ml and a standard deviation of 50 ml. For a random sample of 100 large cups poured, what is the mean of the sampling distribution? 50 600 100 50 √100