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 102 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
:D TYSM

jojobee318

  • Member
  • Posts: 298
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Traditional animal phylogeny based on body plans. Traditional animal phylogeny based on body plans.
Examining the survivorship curve of a Dall mountain sheep population reveals information on the caus Examining the survivorship curve of a Dall mountain sheep population reveals information on the caus
Chemosynthesis-based community on the East Pacific Rise. Chemosynthesis-based community on the East Pacific Rise.
Population and Settlement Population and Settlement
Breakdown of the Population by Schooling and Wages Breakdown of the Population by Schooling and Wages
Some Cases of Population Aging Some Cases of Population Aging
Video: Kinetic parameters & Kinetic experiment

For a complete list of videos, visit our video library