Purchase Solution

Sampling and Confidence Levels : For a sample of size n=100, proportion p = 0.6, and at a 95% confidence level, the upper bound of the proportion is...

Not what you're looking for?

Ask Custom Question

For a sample of size n=100, proportion p = 0.6, and at a 95% confidence level, the upper bound of the proportion is:

A. 0.096
B. 0.696
C. 0.050
D. 0.025

Purchase this Solution

Solution Summary

Samples and confidence levels are investigated. The solution is detailed and well presented.

Solution provided by:
Education
  • BSc , Wuhan Univ. China
  • MA, Shandong Univ.
Recent Feedback
  • "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
  • "excellent work"
  • "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
  • "Thank you"
  • "Thank you very much for your valuable time and assistance!"
Purchase this Solution


Free BrainMass Quizzes
Marketing Research and Forecasting

The following quiz will assess your ability to identify steps in the marketing research process. Understanding this information will provide fundamental knowledge related to marketing research.

Managing the Older Worker

This quiz will let you know some of the basics of dealing with older workers. This is increasingly important for managers and human resource workers as many countries are facing an increase in older people in the workforce

Introduction to Finance

This quiz test introductory finance topics.

Learning Lean

This quiz will help you understand the basic concepts of Lean.

Business Processes

This quiz is intended to help business students better understand business processes, including those related to manufacturing and marketing. The questions focus on terms used to describe business processes and marketing activities.