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 60 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
Gracias!

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

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

Negative feedback control of the female reproductive hormones Negative feedback control of the female reproductive hormones
Control of thyroxine secretion through negative feedback. Control of thyroxine secretion through negative feedback.
Control of glycogen synthase activity Control of glycogen synthase activity
Study Duddy 1 Study Duddy 1
An inventory record sheet shows a balance on hand of 972. During the month units sold were 111, ... An inventory record sheet shows a balance on hand of 972. During the month units sold were 111, ...
Video: Neural regulation of mechanical digestion- CNS voluntary, ANS & ENS controlled involuntary movements

For a complete list of videos, visit our video library