« previous next »

Author Question: How can we determine the representativeness of a sample mean for a particular population? a. Draw ... (Read 72 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
on: Jun 20, 2018
How can we determine the representativeness of a sample mean for a particular population?
 
  a. Draw a graph and compare the heights of the bars representing the population and sample means.
  b. Convert the sample mean to a z-score and compare the z-score to the critical value.
  c. Compare the sample mean to the population mean and compare the difference to the criterion.
  d. Compare the sample mean to the population standard deviation and look up its probability.

Question 2

If we decide not to reject the idea that a sample represents a particular population, because the sample mean does not lie within the rejection region,
 
  a. although the probability is low, our decision may be wrong.
  b. the probability is high that our decision is wrong.
  c. we cannot know the probability of our decision being right or wrong.
  d. the probability of our decision being correct is 0.05.


swimkari

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Sample communication analysis Sample communication analysis
HIV Population Worldwide HIV Population Worldwide
Population Pyramids Population Pyramids
Sample client goals from the Wellness Massage Pyramid. Sample client goals from the Wellness Massage Pyramid.
Sample Inclusion for Various s Sample Inclusion for Various s
Video: ACTH/Cortisol (glycogenolysis, protein catabolism, lipolysis and gluconeogenesis)

For a complete list of videos, visit our video library