« previous next »

Author Question: Random digit dialing is a sampling techniques that was developed in order to _____. a. obtain ... (Read 149 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
on: Jun 19, 2018
Random digit dialing is a sampling techniques that was developed in order to _____.
 
  a. obtain random samples c. check internal validity
  b. obtain matched samples d. check external validity

Question 2

In order to estimate the ratio of white to black students in his college, a professor determines the proportion of whites and blacks in his class. The resulting proportion is called a _________.
 
  a. population c. parameter
  b. sample d. statistic


aham8f

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 19, 2018
Answer to Question 1

A
Random digit dialing is used in order to obtain random samples. The last four digits of a phone number are dialed randomly, thereby making it equally likely that any one number with a certain exchange will be dialed.

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Tattoos and Body Piercings: This patient developed cellulitis from tattoo ink Tattoos and Body Piercings: This patient developed cellulitis from tattoo ink
Random doodling Random doodling
Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ... Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ...
Swedish Massage Techniques and Variations Swedish Massage Techniques and Variations
Recent history of biochemistry shown by the introduction of new techniques. (part 2) Recent history of biochemistry shown by the introduction of new techniques. (part 2)
The distribution of the number of hours that a random sample of people spend doing chores per ... The distribution of the number of hours that a random sample of people spend doing chores per ...
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library