This topic contains a solution. Click here to go to the answer

Author Question: In a poll of students in grades 6 through 12, 13 reported that someone had seriously threatened to ... (Read 78 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
In a poll of students in grades 6 through 12, 13 reported that someone had seriously threatened to shoot them in the past year. This percentage was based on a sample of 2,508 students in 96 schools for which the principal had to give consent before the students could be surveyed. Give one possible explanation of why the sample may not have been representative of the population of all students in grades 6 through 12.

Question 2

A survey of people applying for a mortgage showed that among white people with a bad credit rating, 90 were approved for mortgages, whereas among black people with a bad credit rating, 81 were approved. What confounding variable could also explain the apparent racial difference in the percentage of approved mortgages?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Swizqar

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

The principals who taught in high crime neighborhoods may have been more willing to participate in the survey than principals in low crime neighborhoods.

Answer to Question 2

Amount of other assets and income level are both potential confounding variables.




craiczarry

  • Member
  • Posts: 527
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)


ryansturges

  • Member
  • Posts: 338
Reply 3 on: Yesterday
Gracias!

 

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

For a complete list of videos, visit our video library