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 53 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!

softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Comparison of the level of skin damage as a result of the three different degrees of burns. Comparison of the level of skin damage as a result of the three different degrees of burns.
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
How to read gel electrophoresis result How to read gel electrophoresis result
Drug tolerance: A shift in the dose-response curve to the right as a result of exposure to the drug. Drug tolerance: A shift in the dose-response curve to the right as a result of exposure to the drug.
) Random assortment of maternal (blue) and paternal (purple) chromosomes at metaphase ) Random assortment of maternal (blue) and paternal (purple) chromosomes at metaphase
A random sample of 87 airline pilots recruited by an airline service had an average yearly ... A random sample of 87 airline pilots recruited by an airline service had an average yearly ...
Video: Calvin Cycle Explained!

For a complete list of videos, visit our video library