This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The formula for calculating a confidence interval for a population proportion is based on the rule ... (Read 100 times)

mpobi80

  • Hero Member
  • *****
  • Posts: 519
on: Jul 24, 2018
The formula for calculating a confidence interval for a population proportion is based on the rule of sample proportions, which has assumptions that need to be met. What is the most important assumption that you need to check before applying the confidence interval formula to a sample proportion?

Question 2

Using one divided by the square root of the sample size is known as a conservative' formula for the margin of error for a sample proportion. Explain what that means.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wfdfwc23

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 24, 2018
Answer to Question 1

THE SAMPLE SIZE MUST BE LARGE ENOUGH SO THAT YOU ARE LIKELY TO SEE AT LEAST FIVE OF EACH OF THE TWO POSSIBLE RESPONSES OR OUTCOMES.

Answer to Question 2

THE TRUE MARGIN OF ERROR FOUND BY THE FORMULA 2  (S.D.) IS ALWAYS LESS THAN OR EQUAL TO THIS VALUE. IT IS EQUAL WHEN THE PROPORTION USED IN THE FORMULA FOR S.D. IS .50 .


mpobi80

  • Member
  • Posts: 519
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
Distribution of the World’s Population Distribution of the World’s Population
Finding the derivative using the power rule - Solutions Finding the derivative using the power rule - Solutions
Find derivative using chain rule Find derivative using chain rule
formula formula
Genome-wide SNP-based heritability for individual behavioral disorders Genome-wide SNP-based heritability for individual behavioral disorders
Video: Ear Virtual Tour Animation

For a complete list of videos, visit our video library