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 385 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?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Flipper tags have been extensively used in the study of penguin population dynamics. Flipper tags have been extensively used in the study of penguin population dynamics.
An Estimate of the Time of Global Peak Conventional Oil Production An Estimate of the Time of Global Peak Conventional Oil Production
Sample Exercise Program for Limited Older Adults Sample Exercise Program for Limited Older Adults
World Population Growth World Population Growth
Which of the following is the most reasonable estimate of the number of characters (typed ... Which of the following is the most reasonable estimate of the number of characters (typed ...
What is the [OH-] in a seawater sample if the pH is 8.65? What is the [OH-] in a seawater sample if the pH is 8.65?
Video: Wound Repair Animation

For a complete list of videos, visit our video library