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: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Islands harbor unique biodiversity that is at great risk due to human activities. Explain this...

Biology
Q

Consider the differential equation y?'' ? 2y?' + 10y = 0;    ex cos(3x), ex sin(3x), (??, ?). Verify that the given functions form...

Advance Math
Q

When a eukaryotic cell undergoes cellular division creating two new daughter cells that have the...

Biology
Q

he amplitude of a wave disturbance propagating in positive direction of x 1 1 x...

Physics
Q

11 c 2x 0 7 38 56 II In the figure a b 170 Calculate...

Geometry
Q

Determine whether the following compound proposition is a tautology a contradiction or a contingency pr...

Basic Math
Q

Solve the equation 1 2 r r 6 2 5r 1 2 5r

Algebra
Q

5-2) Define the term 'loss absorption power'. How is it calculated? What significance does...

Accounting
Q

Describe what the SDLC is and why you think it is important to accountants. Briefly...

Accounting
Q

Bar Delivery Company purchased a new delivery truck for $51,000 on April 1, Year 1...

Accounting
Q

Cali, Inc., had a $4,000,000 note payable due on March 15, 2002. On January 28,...

Accounting
Q

O. Giverine ON:Ben Ola interye O. 4m O. Giverine ON:Ben Ola interye O. 4m

Accounting