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 102 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
Great answer, keep it coming :)

mochi09

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Feedforward control of breathing rate in an animal trained for athletic exercise. Feedforward control of breathing rate in an animal trained for athletic exercise.
Hormonal control of the male reproductive hormones. Hormonal control of the male reproductive hormones.
PGC-1 and SIRT1 control the reprogramming of fuel utilization pathways in response to fasting PGC-1 and SIRT1 control the reprogramming of fuel utilization pathways in response to fasting
Control you knife with one hand and hold the item being cut with the other (3 of 3) Control you knife with one hand and hold the item being cut with the other (3 of 3)
These findings are from Colby and Kohlberg's long-term longitudinal study These findings are from Colby and Kohlberg's long-term longitudinal study
Baltimore Longitudinal Study of Aging Baltimore Longitudinal Study of Aging
Video: Glucose Evaluation Procedure

For a complete list of videos, visit our video library