A research firm needs to estimate within 3% the proportion of junior executives leaving large manufacturingcompanies within three years. A 0.95 degree of confidence is to be used. Several years ago, a study revealed that37% of junior executives left their company within three years. To update this study, how many junior executivesshould be surveyed?Multiple Choice8808989951,183

We have to find given sample size...

Answered: A research firm needs to estimate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An article a newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the results of a poll, showed that 46% would like more discussion about the family's financial situation, 37% would like to talk about school, and 30% would like to talk about religion. These and other percentages were based on a national sampling of 512512 teenagers. Estimate the proportion of all teenagers who want more family discussions about school. Use a 9090% confidence level. Express the answer in the form ModifyingAbove p with caretpplus or minus±E and round to the nearest thousandth.
A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to their new home. Find the margin of error for this poll if we want 95% confidence in our estimate of the percent of new home buyers who hired movers.Group of answer choices5%2.48%4.96%2.08%2.5%
In January, 2015, there were 97.89 million people in the United States who owned a smartphone that ran the Google Android operating system (OS). The Google Android OS was used on 53.2% of all smartphones. Howmany people in the United States owned a smartphone in January, 2015?
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Suppose a sample of 2552 tenth graders is drawn. Of the students sampled, 2119 read above the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.
Last year 46% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicated that 35% plan to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 60 business owners. How many business owners in the survey plan to provide a holiday gift to their employees this year?
A manager for Shopee wants to determine the current percentage of Filipino adults who now use the Internet. How many adults must be surveyed in order to be 95% confident that the sample percentage is in error by no more than three percentage points when: * A. In 2020 , 73% of adults used the internet B. No know possible value of the proportion
A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were hospitalized in January, how many had an MRI?
An article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the results of a poll, showed that 46% would like more discussion about the family's financial situation, 37% would like to talk about school, and 30% would like totalk about religion. These and other percentages were based on a national sampling of 546 teenagers. Estimate the proportion of all teenagers who want more family discussions about the school. Use a 95% confidence level. Express the answer in the form p ± E and round to the nearest thousandth.
A polling company reported that 19% of 1018 surveyed adults said that secondhand smoke is "very harmful." Complete parts (a) through (d) below. a. What is the exact value that is 19% of 1018? The exact value is 193.4 (Type an integer or a decimal.)
A group project ivestigated the number of hours of TV viewed by students ona caollege campus. Two hundred students were surveyed via questionnaires. Identify the population?

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