Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. 3. a. a researcher wants to study how long (in day

3. a. A researcher wants to study how long (in days) patients aged 30-39 who are admitted...

60.1K

Verified Solution

Question

Statistics

3.

a. A researcher wants to study how long (in days) patients aged30-39 who are admitted to a hospital for coronavirus treatmentspend in the hospital before being discharged. Preliminary datasuggests that
? = 4 days is a safe assumption. Assuming the recovery times havestandard deviation 4 days (which would say that virtually allpatients recover in some number of days +/- about 12 days), use theformula

? = ?^2 * ?^2 / ?^2

To find the number of patients that would need to be sampled toconstruct a 95% confidence interval for the mean recovery time witha margin of error of 0.5 days. Make sure to show how you find thecritical value z

b. Same question as part a, if instead you assume that ? = 3.5days.

Answer & Explanation Solved by verified expert
3.7 Ratings (319 Votes)
SolutionaGiven in the questionPopulation standard deviation 4Margin of errorE 05 daysHere we    See Answer
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

A source of sound emitting a note of frequency 200 Hz moves towards an observer...

Geometry
1.2K views

9 When Esteban looks at the puddle he sees a reflection of the top of...

Basic Math
1.2K views

3 Solve each of the following Find the roots b 5x 4x 2 5x a...

Basic Math
1.2K views

Suppose that 55% of all babies born in a particular hospital are girls. If 7...

Basic Math
1.2K views

A movie theatre models the revenue from ticket sales inone day as a function of...

Statistics
1.2K views

A A 16 18 16 CA AR 22 2 412 A2 32 32 02 A2...

Algebra
1.2K views

OSYS AS OF Solving a percent mixture problem using a ES A chef is going...

Accounting
1.2K views

A summary of Klugman Company's December 31, 2021, accounts receivable aging schedule is presented below...

Accounting
1.2K views

Weighted Average Method, Equivalent Units Goforth Company produces a product where all manufacturing inputs are...

Accounting
1.2K views

Adams Manufacturing Company was started on January 1, Year 1, when it acquired $88,000 casht...

Finance
1.2K views

TABLE 4 Nonresidential Real Property Mid-Month Convention Straight Line-31.5 Years (for assets placed in service...

Accounting
1.2K views

Terra Corp. purchased a new enterprise software system and incurred the following costs: Cost of...