Answered: A sample of n=900 observations is drawn…

Name: A sample of n=900 observations is drawn from a population that is nor
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: A sample of n=900 observations is drawn from a population that is normally distributed with mean p=1,000 and o=300. Find the following probabilities.P(X <1030) is:.9587.3896.9987.8405

Math

Statistics

A sample of n=900 observations is drawn from a population that is normally distributed with mean p=1,000 and o=300. Find the following probabilities. P(X <1030) is: .9587 .3896 .9987 .8405

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

3 Let X represent the full height of a certain species of tree. Assume that X has a normal distribution with a mean of 136.8 ft and a standard deviation of 8.1 ft. A tree of this type grows in my backyard, and it stands 141.7 feet tall. Find the probability that the height of a randomly selected tree is as tall as mine or shorter. My neighbor also has a tree of this type growing in her backyard, but hers stands 149.8 feet tall. Find the probability that the full height of a randomly selected tree is at least as tall as hers. Enter your answers as decimals accurate to 4 decimal places. Submit Question 3.0 E D FFB $ 4 70 F in de % FSS T G MacBook Air Y & 7 H *** 8 U UI J F9 K
Q. 3 In a large population of adults, 45% have a University degree. If people are selected at random from this population: (i) Find the probability that the third person selected is the first one that has a post University degree. (ii) Find mean and standard deviation of this geometric distribution.
Assume that adults have IQ scores that are normally distributed with a mean of m = 105 and a standard deviation s =15. Find the probability that a randomly selected adult has an IQ between 91 and 119. The probability that a randomly selected adult has an IQ between 91 and 119 is ____.
The mean annual cost of automobile insurance is $939 (CNBC, February 23, 2006). Assume that the population standard deviation is σ = $245. What is the probability that a simple random sample of automobile insurance policies will have a sample mean within $25 of the population mean (P (939-25 <x-bar<939+25)) for each of the following sample sizes: 30, 50, and 100?
A sample of n=900 observations is drawn from a population that is normally distributed with mean µ=1,000 and o=300. Find the following probabilities. P(X 2 1025) is: .0567 .4356 .0023 .0062 O O O O
The average age of all employees is 25 years, and the standard deviation of the ages of all employees is 3 years. Suppose 100 employees are randomly selected.
A random sample of n = 100 observations is selected from a population with u = 31 and o = 21. Approximate the probabilities shown below. a. P(x2 28) c. P(xs 28.2) b. P(22.1sxs26.8) d. P(x2 27.0) Click the icon to view the table of normal curve areas.
The average prison sentence for a person convicted of second-degree murder is 16 years. If the sentences are normally distributed with a standard deviation of 2.1 years, find the following probabilities. A prison sentence is greater than 19 years. P(X>19) =
How were the answers of 0.0344, 0.4656, 0.1470, and 0.1470 attained?
Supposed Y follow a binomial distribution with n = 15 and p = 0.4. a.) Find the exact probabilities of Y < 8 and Y = 8 (from the included tables). b.) Compare these to the corresponding values found by using the normal approximation (from the included tables).
Suppose that the mean hourly wage of all employees in a large semiconductor manufacturing facility is $50 with a standard deviation of $10. Let X be the mean hourly wages of certain employees selected randomly from all the employees of this manufacturing facility. If a random sample of 64 employees is selected, then the probability that the mean hourly wages X falls between $48 and $52 is: 0.9986 0.8904 0.9544 0.9898
Suppose the scores of students on an exam are normally distributed with a mean of 444 and a standard deviation of 65. Then approximately 68% of the exam scores lie between the integers _____ and ____ such that the mean is halfway between these two integers.