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

Author Question: In an observational study, the researcher exerts strict control over the units in the study. A) ... (Read 81 times)

genevieve1028

  • Hero Member
  • *****
  • Posts: 601
on: Jun 24, 2018
In an observational study, the researcher exerts strict control over the units in the study.
 
  A) True B) False

Question 2

Three female students and two male students are to be chosen from a group of 30 female students and 20 male students. Does this sample of five students satisfy the conditions to be a random sample of the 50 students in the group? Explain.
 
  Answer the question True or False.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

SAUXC

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

No; not every sample of 5 students from the group has an equal chance of selection; for example, a sample consisting of 5 males has no chance of being selected.


genevieve1028

  • Member
  • Posts: 601
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

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

endocrine feedback control endocrine feedback control
Neuropeptides and Peripheral Peptides Involved in Control of Food Intake and Metabolism Neuropeptides and Peripheral Peptides Involved in Control of Food Intake and Metabolism
Operational Control Operational Control
Internal and External Loci of Control Internal and External Loci of Control
Advantages of Observational Method Advantages of Observational Method
Study Duddy 2 Study Duddy 2
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

For a complete list of videos, visit our video library