Verified Document

Coastal Star Sales Corporation Is A-Level Coursework

Related Topics:

Calculate a confidence interval at 95% to get an interval estimate for a proposition. 4.29 5-in a nationwide survey, a researcher expects that 30% of the population will agree with an attitude statement. She wishes to have less than 2% error and to be 95% confident. What sample size is needed? 30

6- City Opera, a local opera company wishes to take a sample of its subscribers to learn the average number of years people have been subscribing. The director of research expects the average to be 12 years and believes the standard deviation will be about 2 years...

She wishes to be 95% confident of her estimate. What is the appropriate sample size? 12
7- a researcher expects the population proportion of Cubs fans in Chicago to be 80%. The researcher wishes to have an error less than 5% and to be 95% confident of an estimate to be made of a mail survey. What sample size is required? 66

8-an automobile dealership plans to conduct a survey to determine what proportion of a new-car buyers continue to have their cars service at the dealership after the warranty period…

Sources used in this document:
8-an automobile dealership plans to conduct a survey to determine what proportion of a new-car buyers continue to have their cars service at the dealership after the warranty period ends. It estimates that 30% of customers do so. It wants the result of its survey to be accurate within 5% and it wants to be 95% confident of the results. What sample size is necessary? 28

Source

Creative Research Systems. Sample Size Calculator. Retrieved on January 24, 2011 from: http://www.surveysystem.com/sscalc.htm
Cite this Document:
Copy Bibliography Citation

Related Documents

Descriptive Epidemiology Promises for the Future
Words: 1308 Length: 4 Document Type: Term Paper

Descriptive Epidemiology: Future ConsiderationsTopic 1: Descriptive epidemiology offers clinicians a look at the bigger picture of how disease manifests because it creates a way of arranging and assessing data in order to “understand variations in disease frequency geographically and over time, and how disease (or health) varies among people based on a host of personal characteristics (person, place, and time)” (bu.edu). As a result of these methods, it provides clinicians

Descriptive Statistics and Regression Analysis
Words: 1235 Length: 4 Document Type: Essay

Introduction The business taken into account for the analysis is Google, Inc. The primary data being collected is on Google and on different mobile applications to evaluate the validity of whether the latter are becoming more significant and popular compared to Google. In this case, the independent variable is percentage of internet usage on Google for every period. Basically, the metric taken into consideration is the percentage of time spent on

Descriptive Statistics and Statistics
Words: 558 Length: 2 Document Type: Research Paper

statistics statistics and inferential statistics. Descriptive statistics and inferential statistics are used for different types of designs. For example, correlational studies will utilize descriptive statistics to measure a set of data's central tendency along with the way variables vary and relate to one another. A Pearson r would be a type of descriptive statistics test conducted to evaluate the strength of the relationship or if there relation goes in any

Descriptive Epidemiology Case Study
Words: 1323 Length: 4 Document Type: Case Study

Epidemiology Descriptive Epidemiology Case Study The United States has a growing diabetic population, some have called it an epidemic, due to many factors that have become normalized for the country's citizens. People eat an increasingly poor diet, do not exercise as they should and have jobs that grow more sedentary with each passing year. It is difficult to name a single factor that is more damaging, but it would seem that people

Descriptive Essay Examples to Get You Started
Words: 3280 Length: 10 Document Type: Essays

Melville’s Spouter Inn Some of the best descriptive essay examples can be found among the writings of the greatest authors.  Consider a chapter in Moby-Dick by Herman Melville:  every chapter of that book is like a mini-descriptive essay.  Look at the way Melville uses description to create atmospheric effect in the first line of “Chapter 3:  The Spouter Inn” from Moby-Dick:  “Entering that gable-ended Spouter-Inn, you found yourself in a wide, low,

Descriptive Statistics and Variables
Words: 882 Length: 3 Document Type: Term Paper

collects sample data from 2001 households across the United States to evaluate the attributes of the participants. The total number of 50 variables are used to identify the data attributes, however, three discrete variables and three continuous variables are selected to evaluate the relationships. The selected discrete variables are Number of Children, Number of cars and Mail Buyer. However, the selected continuous variables are Athletic Dimension, Length of residence,

Sign Up for Unlimited Study Help

Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.

Get Started Now