Lecture 1a

Question 1

Statistics

Answer 1

• Science of collecting and interpreting data to make inferences about real world

Question 2

A statistic

Answer 2

• the actual numbers that summarize something about real world
• Describe by central tendency, variability, maximum, shape, etc

Question 3

Descriptive Statistics

Answer 3

• Describes a phenomenon
• Describes the Range (max- min)
• Ex. Level of monoamine axidase activity in blood

Question 4

Inferential Statistics

Answer 4

• Able to make generalized conclusions (usually with experiments or comparing to other natural groups)

Question 5

Significant Result

Answer 5

• The result unlikely to have occurred by chance if the null hypothesis is true

Question 6

Null Hypothesis

Answer 6

the norm- the status quo

Question 7

Continuous data

Answer 7

• measured on a continuous scale

- ex. Height

Question 8

Categorical

Answer 8

• Nominal - Discrete Categories

- Ordinal - Natural order (ex. moderate, hard, etc.)