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

Author Question: Which is true about a 98% confidence interval for a population proportion based on a given sample?I. ... (Read 212 times)

mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
on: Aug 30, 2019

Question 1

We have calculated a 95% confidence interval and would prefer for our next confidence interval to have a smaller margin of error without losing any confidence. In order to do this, we can
I.   change the z* value to a smaller number.
II.  take a larger sample.
III. take a smaller sample.
◦ I only
◦ II only
◦ III only
◦ I and III
◦ I and II

Question 2

Which is true about a 98% confidence interval for a population proportion based on a given sample?
I.   We are 98% confident that other sample proportions will be in our interval.
II.  There is a 98% chance that our interval contains the population proportion.
III. The interval is wider than a 95% confidence interval would be.
◦ I only
◦ I and II
◦ III only
◦ II only
◦ None
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by mckennatimberlake on Aug 30, 2019

emily12345

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Aug 30, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly


mckennatimberlake

  • Member
  • Posts: 559
Reply 2 on: Aug 30, 2019
Great answer, keep it coming :)

tanna.moeller

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

An aryballe vase or decanter made for carrying body oils clearly demonstrates that ancient Greeks we An aryballe vase or decanter made for carrying body oils clearly demonstrates that ancient Greeks we
Rural versus Urban Population, 1820–1860 Rural versus Urban Population, 1820–1860
Leonardo da Vinci, Study of Human Proportion: The Vitruvian Man. Leonardo da Vinci, Study of Human Proportion: The Vitruvian Man.
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Population and Settlement Population and Settlement
Population and Settlement Population and Settlement
Video: Muscular System Animation

For a complete list of videos, visit our video library