SearchO Khan AcademyDonatFinding probabilities with sample proportionsYou might need:Calculator, Z tableSuppose that 15% of the 1750 students at a school have experienced extreme levels of stress during the pastmonth. A high school newspaper doesn't know this figure, but they are curious what it is, so they decide to ask asimple random sample of 160 students if they have experienced extreme levels of stress during the past month.Subsequently, they find that 10% of the sample replied "yes" to the question.Assuming the true proportion is 15%, what is the approximate probability that more than 10% of the samplewould report that they experienced extreme levels of stress during the past month?Choose 1 answer:P(p > 0.10) × 0.92P(p > 0.10) z 0.94P(p > 0.10) 0.96D P(p > 0.10) - 0.98Show Calculator3 of 4 . . O0CheckAboutMath: Pre-K- 8th grademission is to provide a free, world-classation to anvone anywhereNewsContactMath: Get ready courses? X Pis

Name: SearchO Khan AcademyDonatFinding probabilities with sample proportion
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: SearchO Khan AcademyDonatFinding probabilities with sample proportionsYou might need:Calculator, Z tableSuppose that 15% of the 1750 students at a school have experienced extreme levels of stress during the pastmonth. A high school newspaper doesn't

It is given that n =750 and p =0.184.

Answered: Assuming the true proportion is 15%,…

Math

Probability

Assuming the true proportion is 15%, what is the approximate probability that more than 10% of the sample would report that they experienced extreme levels of stress during the past month?

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

IS IT REASONABLE TO ASSUME THIS SAMPLE CAME FROM A NORMAL POPULATION?
Suppose the manager agrees to pay each employee a $50 bonus if they meet a certain goal. On a typical Saturday, the oil change facility will perform 40 oil changes between 10 AM and 12PM. Treating this as a random sample, there would be a 10% chance of the mean oil change time being at or below what value.
If a person’s z score equals 1.61, what percentage of the observations are more extreme?
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?
In a population of normally distributed data, the mean is 68 and the standard deviation is 12.75. You take a random sample of 25 items from that population. What is the probability that the sample mean will be between 70 and 75?
Suppose the heights of 18 year old men are approximately normally distributed, with mean 71 inches and standard deviation 5 inches. What is the probability that an 18 year old man selected at random is between 70 and 72 inches tall? if random sample of twenty-nine 18 year old men is selected, what is the probability that the mean height x is between 70 and 72 inches? compare your answers to parts a and b. Is the probability in part b much higher? Why
. Patients at the outpatient surgical center in Braintree, MA have an average recovery time of 14 days with a standard deviation of 3 Assuming these raw scores form a normal distribution What is the probability of getting a raw score between 13 and 15?
Suppose that the diameters of oak trees are normally distributed with a mean of 4.000 feet and a standard deviation of 0.375 feet. What is the probability of sampling a set of 87 oak trees and finding their mean to differ from the population mean by less than 0.1 feet in diameter? Your answer should be from the cumulative normal distribution table.
Suppose a subdivision on the southwest side of Denver, Colorado, contains 1,800 houses. The subdivision was built in 1983. A sample of 110 houses is selected randomly and evaluated by an appraiser. If the mean appraised value of a house in this subdivision for all houses is $229,000, with a standard deviation of $8,500, what is the probability that the sample average is greater than $231,000? Appendix A Statistical Tables (Round the values of z to 2 decimal places, e.g. 15.25. Round your answer to 4 decimal places, e.g. 0.2513.)enter probability rounded to 4 decimal places
A direct mail company wishes to estimate the proportion of people on a large mailing list that will purchase a product. Suppose the true proportion is 0.07. If 343 are sampled, what is the probability that the sample proportion will be less than 0.11? Round your answer to four decimal places.
An organization for people with high IQ, and eligibility requires an IQ above 131.5. Suppose the IQ scores are normally distributed with a mean of 102.5 and standard deviation of 16.1. If someone wants to join the organization, what is the probability that he or she meets the organization’s requirement?
a. If the population mean is 410 and the population standard deviation is 10, what is the probability that one or a raw score that is drawn at random is above 400? b. Is this probability a percentile? State yes or no and explain why.