Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. the centers for disease control reported the perce

The Centers for Disease Control reported the percentage of people 18 years of age and older...

80.2K

Verified Solution

Question

Statistics

The Centers for Disease Control reported the percentageof people 18 years of age and older who smoke (CDC website,December 14, 2014). Suppose that a study designed to collect newdata on smokers and nonsmokers uses a preliminary estimate of theproportion who smoke of .28.

a. How large a sample should be taken to estimate the proportionof smokers in the population with a margin of error of .02 (to thenearest whole number)? Use 95% confidence.

b. Assume that the study uses your sample size recommendation inpart (a) and finds 520 smokers. What is the point estimate of theproportion of smokers in the population (to 4 decimals)?

c. What is the 95% confidence interval for the proportion ofsmokers in the population (to 4 decimals)?

Answer & Explanation Solved by verified expert
3.8 Ratings (440 Votes)
SolutionGiven thata 0281 1 028 072margin of error E 002At 95 confidence level 1 95 1    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

Chemistry
1.2K views

Data Tables: Drops of   HCl added pH Beaker 1 Acetic Acid + Acetate pH Beaker 2 Ammonia + Ammonium pH Beaker...

Medical Sciences
1.2K views

a)_Discuss the small intestine and include one usual abnormal finding

Physics
1.2K views

Two charges, -24

Finance
1.2K views

Donald Trump imposed tariffs on steel imports. Consider the economic arguments in favor and against this...

Calculus
1.2K views

6 5 4 3 2 1 1 0 1 2 3 2 3 4 What...

Accounting
1.2K views

The following information comes from the accounting records for Chelsea, Inc., for May: ...

Accounting
1.2K views

Assume the company uses LIFO. Complete the table below and the...

Accounting
1.2K views

At January 1, 2024, Caf Med leased restaurant equipment from Crescent Corporation under a nine-year...

Accounting
1.2K views

when future events cannot be assigned probabilities we are talking about a. a clouded future...

Accounting
1.2K views

Exercise 2-3 (Algo) Computing Total Job Costs and Unit Product Costs Using a Plantwide Predetermined...

Accounting
1.2K views

Record the adjusting entry for accrued salaries and wages at year-end that amounted to $800...

Finance
1.2K views

Refer to the Mini-S&P contract in Figure 22.1. Assume the closing price for this day....