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

Author Question: A certain population is bimodal. We want to estimate its mean, so we will collect a sample. Which ... (Read 312 times)

mmm

  • Hero Member
  • *****
  • Posts: 558
on: Aug 30, 2019

Question 1

We have calculated a confidence interval based on a sample of size n = 100. Now we want to get a better estimate with a margin of error that is only one-fourth as large. How large does our new sample need to be?
◦ 200
◦ 1600
◦ 25
◦ 50
◦ 400

Question 2

A certain population is bimodal. We want to estimate its mean, so we will collect a sample. Which should be true if we use a large sample rather than a small one?
I.   The distribution of our sample data will be clearly bimodal.
II.  The sampling distribution of the sample means will be approximately normal.
III. The variability of the sample means will be smaller.
◦ I only
◦ I, II, and III
◦ III only
◦ II only
◦ II and III
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 mmm on Aug 30, 2019

ynlevi

  • Sr. Member
  • ****
  • Posts: 338
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 25% of students answer this correctly


mmm

  • Hero Member
  • *****
  • Posts: 558
Reply #2 on: Aug 30, 2019
Thank you!


ynlevi

  • Sr. Member
  • ****
  • Posts: 338
Reply #3 on: Aug 30, 2019
Always glad to help...


« previous next »
 

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

World Population Growth, Past 10,000 years World Population Growth, Past 10,000 years
Sample Advance Directive Cont. Sample Advance Directive Cont.
Sample root cause analysis: Duplicate dose of a narcotic analgesic. Sample root cause analysis: Duplicate dose of a narcotic analgesic.
Population Growth and Mobility Population Growth and Mobility
Population and Settlement Population and Settlement
Distribution Patterns and Population Size Estimates (Bio 30) Distribution Patterns and Population Size Estimates (Bio 30)
Video: Muscle Fatigue and Recovery

For a complete list of videos, visit our video library