Solution Found!

Fundamentals of Statistics | 4th Edition | ISBN: 9780321838704 | Authors: Michael Sullivan,III
Change Question

Sample Size Dr. Paul Oswiecmiski wants to estimate the

Chapter 5, Problem 45AYU

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

Problem 45AYU

Sample Size Dr. Paul Oswiecmiski wants to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females within 2 points with 99% confidence assuming that s = 13.4 based on earlier studies? Suppose that Dr. Oswiecmiski would be content with 95% confidence. How does the decrease in confidence affect the sample size required?

Questions & Answers

QUESTION:

Problem 45AYU

Sample Size Dr. Paul Oswiecmiski wants to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females within 2 points with 99% confidence assuming that s = 13.4 based on earlier studies? Suppose that Dr. Oswiecmiski would be content with 95% confidence. How does the decrease in confidence affect the sample size required?

ANSWER:

Answer:

Step 1

For a 99% confidence level,

The sample size required to obtain a  confidence interval for with a margin of error is given by

            

 Using s = 13.4, E = 2 and the Z-score corresponding to 99% confidence level is 2.576.

           

           

  Therefore, n = 298 patients.

Add to cart

Study Tools You Might Need

Chapter: 7 Problem: 15Q

Introductory Chemistry 5
Is the precipitate in a precipitation reaction always a compound that is soluble or insoluble? Explain.

Chapter: 13 Problem: 13.1

Classical Mechanics 0
Find the Lagrangian, the generalized momentum, and the Hamiltonian for a free particle (no forces at all) confined to move along the x axis. (Use x as your generalized coordinate.) Find and solve Hamilton's equations.

Chapter: 14 Problem: 1

Human Anatomy & Physiology 9
All of the following characterize the ANS except (a) a two-neuron efferent chain, (b) presence of nerve cell bodies in the CNS, (c) presence of nerve cell bodies in the ganglia, (d) innervation of skeletal muscles.

Chapter: 0 Problem: 1

Krugman's Economics for AP* 2
What are the four categories of resources? Give an example of a resource from each category.

Chapter: 11 Problem: 5

Accounting Information Systems 9
What is the client-server model?

Chapter: 5 Problem: 1

Biology: Concepts and Applications 10
Which of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.

Chapter: 15 Problem: 2

Urban Economics 8
Nil Effects of Public Housing According to Mr. Wizard, If my single assumption about the market for privately produced housing is correct, the long-run market effects of public housing are nil. The building of 100 public housing dwellings will affect neither the equilibrium price of housing nor the e

Chapter: 32 Problem: 8

Principles of Economics 9
If business leaders in Great Britain become more confident in their economy, they will increase investment, causing the British pound to _________ and pushing the British trade balance toward _________. a. appreciate; deficit b. appreciate; surplus c. depreciate; deficit d. depreciate; surplus

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back