This topic contains a solution. Click here to go to the answer

Author Question: When determining the sample size for a proportion for a given level of confidence and sampling ... (Read 49 times)

awywial

  • Hero Member
  • *****
  • Posts: 577
When determining the sample size for a proportion for a given level of confidence and sampling error, the closer to 0.50 that  is estimated to be, the sample size required
 
  A) is smaller. B) is not affected.
  C) is larger. D) can be smaller, larger or unaffected.

Question 2

The width of a confidence interval estimate for a proportion will be
 
  A) wider for a sample size of 100 than for a sample size of 50.
  B) narrower for 99 confidence than for 95 confidence.
  C) narrower for 90 confidence than for 95 confidence.
  D) narrower when the sample proportion is 0.50 than when the sample proportion is 0.20.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scottmt

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

C

Answer to Question 2

C




awywial

  • Member
  • Posts: 577
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it


upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

For a complete list of videos, visit our video library