Solution-The difference of two population proportions

The difference of two population proportions

Assignment Help Mathematics

Reference no: EM13807040

1) The proportion of parts in an inventory that are outdated and no longer useful is thought to be 0.10. To check this, a random sample of n = 100 parts is selected and 14 are found to be outdated. Based upon this information, what is the probability of 14 or more outdated parts?
2) From a sample of 90 people, 30% disagreed with a statement.

a) Construct a 95% confidence interval for the proportion of people agreeing with the statement.

b) Construct a 95% confidence interval for the proportion of people disagreeing with the statement.

c) Compare the lengths of the confidence intervals in parts a) and b).
3) A random sample of size 20 revealed 12 respondents in favor of a proposal. Test the hypothesis that the proportion in favor differs from .52 using a 5% significance level.
4) Construct a 90% confidence interval for the difference of two population proportions using x1 = 38, n1 = 50, and x2 = 45, n2 = 50.

Reference no: EM13807040

Questions Cloud

Problems based on the mean values : A worker with a score of 9.0 or less is considered very unhappy with his/her job. Approximately how many workers are very unhappy with their jobs?

Describe the three principles of ip security : Describe 'The Three Principles of IP Security'. Cite references as well as a detailed explanation for the same. Explain how you would as an employee of a company practice those principles

Outline your ideology and state the general principles : Choose a party and ideology. Outline your ideology and state the general principles

Create a personal household budget : You have decided that it might be a good idea to create a personal household budget. You want to be able to save money to purchase a house after you graduate. You decide to create a personal budget

The difference of two population proportions : Construct a 90% confidence interval for the difference of two population proportions using x1 = 38, n1 = 50, and x2 = 45, n2 = 50.

Write research paper about sustainability and green building : Write a research paper about sustainability, green buildings.

Revenue generation for the company : In your opinion, is this part of good customer service or simply revenue generation for the company? What ancillary or complementing items have you been enticed to buy, and why?

What a query execution plan : What a query execution plan? Discuss the reasons for converting SQL queries into relational algebra queries before optimization is done

What are the liabilities of the exclusionary rule : What are the liabilities of the Exclusionary Rule. Explain. What types of errors can occur. Explain

User Account

All Pages

The difference of two population proportions

Reference no: EM13807040

Reference no: EM13807040

Questions Cloud

Reviews

Write a Review

Mathematics Questions & Answers

Questions on ferris wheel

Logistic map

Finding the probability of cards

Systems of ode

Derive the boolean expression

System of equations

Linear programming problem

Find the natural domain

Introduction to numerical methods

Chart of the topological manifold

Mathematics in computing

Complex problems

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT