Bias And Statistical Significance

Question 1

What is a sampling method?

Answer 1

PROCEDURE used to SELECT A SAMPLE from a POPULATION

Question 2

What is simple random sampling?

Answer 2

Any sampling method where any object in a population has an equal chance of being selected.

Question 3

What does without replacement mean?

Answer 3

Items are not replaced in the population after being selected.

Question 4

What does With Replacement mean?

Answer 4

An element within a population can be selected more than once.

Question 5

What is bias in statistics?

Answer 5

Bias is the tendency of a statistic to overestimate or underestimate a parameter.

Question 6

What is sampling bias?

Answer 6

A statistic calculated from the sample is not representative of the population.

Question 7

What is measurement bias?

Answer 7

When the value of a recorded measurement differs from the true value.

Question 8

What is statistical significance?

Answer 8

When something is meaningfully different from what we would expect to occur randomly or by chance.

Question 9

What is the p-value?

Answer 9

Expresses the likelihood that a result could have occurred by chance.

Question 10

What two things does statistical significance depend on?

Answer 10

The size of the SAMPLE and the size of the EFFECT