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

Author Question: Suppose you participate in an instant poll' on an Internet website which asks, What is your favorite ... (Read 107 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Jul 24, 2018
Suppose you participate in an instant poll' on an Internet website which asks, What is your favorite network TV program at 8 pm (Eastern time) on Thursday night? After answering the question, you look at the results of the entire poll, and find that 6,423 people have responded to it. Should the results of this poll be a good indicator of what the most popular network TV program is on Thursday nights at 8pm (Eastern time)? Explain why or why not.

Question 2

Suppose you want to determine whether taking vitamins every day helps people lose weight. You survey 200 people who had been on a weight loss program for six months, and ask them whether or not they take vitamins every day, and how much weight they lost. Suppose you found that the people who lost the most weight were more likely to have taken vitamins every day. Does this mean vitamins caused the additional weight loss? Explain 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

xthemafja

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 24, 2018
Answer to Question 1

NO. THE SAMPLE OF 6,423 PEOPLE IS A CONVENIENCE SAMPLE, AND IS NOT A REPRESENTATIVE SAMPLE OF THE POPULATION OF ALL TV WATCHERS.

Answer to Question 2

NO; THIS WAS AN OBSERVATIONAL STUDY, NOT A CONTROLLED EXPERIMENT. OTHER FACTORS COULD EXPLAIN THE WEIGHT LOSS, SUCH AS A HEALTHY LIFESTYLE (PEOPLE WHO ARE HEALTH CONSCIOUS MAY BE MORE LIKELY TO TAKE VITAMINS).


go.lag

  • Member
  • Posts: 667
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Monopoly, patented in 1935, was an instant best-seller: Players risk all their assets in an attempt Monopoly, patented in 1935, was an instant best-seller: Players risk all their assets in an attempt
An Internet connection is usually needed to perform updates although some vehicle manufacturers use ... An Internet connection is usually needed to perform updates although some vehicle manufacturers use ...
Surfing the Internet for nutrition information Surfing the Internet for nutrition information
Consider the production function ( ) 0.5 0.5 Y = AK L . Suppose both saving rate (s) and the ... Consider the production function ( ) 0.5 0.5 Y = AK L . Suppose both saving rate (s) and the ...
Let A ⊆ R and p ∈ A. Suppose A\{p}6= ∅. Prove that p is an isolated point of A if and ... Let A ⊆ R and p ∈ A. Suppose A\{p}6= ∅. Prove that p is an isolated point of A if and ...
Website Feature (Anonymous) Website Feature (Anonymous)
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library