« previous next »

Author Question: Random digit dialing is a sampling techniques that was developed in order to _____. a. obtain ... (Read 156 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?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

How to use implicit differentiation with higher order derivatives How to use implicit differentiation with higher order derivatives
viable surface sampling by swab viable surface sampling by swab
Conventions and Techniques of Egyptian Pictorial Relief Conventions and Techniques of Egyptian Pictorial Relief
Reconstruction Drawing Of The Citadel At Mycenae At Its Most Developed State Reconstruction Drawing Of The Citadel At Mycenae At Its Most Developed State
Two techniques for holding and inserting an otoscope Two techniques for holding and inserting an otoscope
If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ... If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ...
Video: Male Reproductive System - The gonadotropin releasing hormone

For a complete list of videos, visit our video library