Prepare for your exams
Get points
Guidelines and tips

Prepare for your exams

Study with the several resources on Docsity

Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips

Sell on Docsity

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents

20 Points

For each uploaded document

Answer questions

5 Points

For each given answer (max 1 per day)

All the ways to get free points

Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Search for study opportunitiesNEW

Connect with the world's best universities and choose your course of study

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study

Go to the blog

Assignment on Confidence Intervals for Proportion | STAT 1222, Assignments of Statistics

University of North Carolina (UNC) - Charlotte Statistics

Prof. Animikh Biswas

Material Type: Assignment; Professor: Biswas; Class: Intro to Statistics; Subject: Statistics; University: University of North Carolina - Charlotte; Term: Spring 2009;

Typology: Assignments

Pre 2010

Uploaded on 07/28/2009

koofers-user-adq 🇺🇸

10 documents

1 / 2

Partial preview of the text

Download Assignment on Confidence Intervals for Proportion | STAT 1222 and more Assignments Statistics in PDF only on Docsity! Confidence Intervals for Proportion Stat 1222 (Professor: Dr. A. Biswas) 3/5/09 1. In a survey of 1000 people, 700 people said that they voted in the last presidential election. Find a 90% confidence interval for the proportion of people who say that they voted. (a) (0.676, 0.724) (b) (0, 1) (c) (0.642, 0.767) (d) (0.672, 0.728) (e) (.567, .792). 2. How large the sample size should one use to estimate p (proportion) to within 0.02 at a 99% confidence interval for the proportion p? a) 42 b) 4145 c) 1960 d) 1692 e) none of these. 3. In a survey of 1037 adults from the United States age 65 and over, 643 were concerned about getting the flu. (a) Find a point estimate for the population proportion p of adults concerned about getting the flu. (b) Find a point estimate for the population proportion of adults not concerned about getting the flu.

Documents

questions

Assignment on Confidence Intervals for Proportion | STAT 1222, Assignments of Statistics

Related documents

Partial preview of the text