Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. a researcher wishes to estimate, with 90% confiden

A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think...

70.2K

Verified Solution

Question

Basic Math

image

A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must beaccurate within 2% of the true proportion.(a) No preliminary estimate is available. Find the minimum sample size needed.(b) Find the minimum sample size needed, using a prior study that found that 34% of the respondents said they think Congress is doing a good or excellent job.(c) Compare the results from parts (a) and (b).(a) What is the minimum sample size needed assuming that no prior information is available?(Round up to the nearest whole number as needed.)(b) What is the minimum sample size needed using a prior study that found that 34% of the respondents said they think Congress is doing a good or excellent job?n = (Round up to the nearest whole number as needed.)(c) How do the results from (a) and (b) compare?n =A. Having an estimate of the population proportion has no effect on the minimum sample size needed.B. Having an estimate of the population proportion reduces the minimum sample size needed.C. Having an estimate of the population proportion raises the minimum sample size needed.

Answer & Explanation Solved by verified expert
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Physics
1.2K views

spherical capacitor half space is completely filled with a liquid dielectric Find the 1b 28...

Basic Math
1.2K views

is a face card is a black card and a face card X S

Basic Math
1.2K views

A four-digit number is divisible by 10 and is smaller than 5,000. Which of the...

Basic Math
1.2K views

Which equation represents a tangent function with a domain of all Real numbers such that...

Statistics
1.2K views

For bone density scores that are normally distributed with a mean of 0 and a...

Calculus
1.2K views

6 Consider the infinite series 1 1 n 1 a Compute the first few partial...

Algebra
1.2K views

The 11th and 12th Fibonacci numbers are 89 and 144 What is the 13th Fibonacci...

Algebra
1.2K views

1 For F ax by find F dr across the first quadrant of the circle...

Accounting
1.2K views

[The following information applies to the questions displayed below.] The following selected information was extracted...

Accounting
1.2K views

A continuacin se presenta el estado de resultados del ao en curso de Forten Company,...

Accounting
1.2K views

On January 1, 2016, F Corp. issued 2,200 of its 9%, $1,000 bonds for $2,274,000....

Finance
1.2K views

Case narrative: A young couple, both 25 years old, are planning to retire in 40...