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

Author Question: A 95 confidence interval means that 95 of all possible random samples will result in an interval ... (Read 113 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 24, 2018
A 95 confidence interval means that 95 of all possible random samples will result in an interval that contains the true population value, and 5 of them won't. How could a confidence interval that is based on a random sample not contain the true population value?

Question 2

Statisticians have a phrase, Being a statistician means never having to say you're certain.. Do you know whether the confidence interval constructed by your sample actually contains the true population value? Why or why not?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

djpooyouma

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 24, 2018
Answer to Question 1

5 OF THE SAMPLE RESULTS WILL BE UNUSUALLY HIGH OR UNUSUALLY LOW COMPARED TO THE TRUE POPULATION VALUE, JUST BY CHANCE.

Answer to Question 2

NO, BECAUSE SAMPLE RESULTS VARY. 95 OF THE SAMPLES WILL RESULT IN CONFIDENCE INTERVALS THAT ARE CORRECT, AND 5 WON'T. YOU NEVER KNOW WHETHER A PARTICULAR CONFIDENCE INTERVAL IS CORRECT UNLESS THE TRUTH IS REVEALED AT SOME FUTURE DATE.


rmenurse

  • Member
  • Posts: 513
Reply 2 on: Jul 24, 2018
Gracias!

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Hip Typically occurs as a result of a fall; with osteoporosis, hip fractures can occur as a result o Hip Typically occurs as a result of a fall; with osteoporosis, hip fractures can occur as a result o
Localization of a Peptide The peptide is revealed by means of immunocytochemistry. The photomicrogra Localization of a Peptide The peptide is revealed by means of immunocytochemistry. The photomicrogra
Development encompasses both gains and losses. Sometimes a health crisis (loss) can result in a heal Development encompasses both gains and losses. Sometimes a health crisis (loss) can result in a heal
Absorption & Stripping Design Random packing materials Absorption & Stripping Design Random packing materials
A sphere represented by means of modeling. A sphere represented by means of modeling.
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Video: Exocytosis - secretion

For a complete list of videos, visit our video library