Author Question: A statistics class has 50 females and 50 males. A researcher randomly selects a sample that has 80 ... (Read 146 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
A statistics class has 50 females and 50 males. A researcher randomly selects a sample that has 80 males and 20 females. Why should the researcher be cautious of making inferences about the entire class based on the sample?
 
  a. Because, by luck of the draw, the sample is unrepresentative of the population.
  b. Because, by luck of the draw, the sample is representative of the population.
  c. Because, by luck of the draw, the opinions of the females in the sample will not be the same as those of the females in the population.
  d. Because, by luck of the draw, the sample was too small.

Question 2

When a sample does not represent the population, any evidence obtained from that sample regarding a law of nature is
 
  a. possibly representative of the population. c. descriptive.
  b. used to draw inferences. d. misleading.



firehawk60

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

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?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

For a complete list of videos, visit our video library