Data Collection

Question 1

Variable that is out of the researcher’s control

Answer 1

Random variable

Question 2

The 3 Basic Methods of Collecting Data are:

Answer 2

Retrospective study (using historical data), observational study (data presently collected) and designed experiment (data collected in response to process input changes

Question 3

2 Types of Reasoning

Answer 3

Forward Reasoning
?? Reasoning

Question 4

What is forward reasoning?

Question 5

Uses established, physical laws; uses past data to determine uncertainty/tolerance

Answer 5

forward reasoning

Question 6

What is the purpose of data gathering (with regards to hypotheses)

Answer 6

To verify of nullify a hypothesis

Question 7

From a small subset, you use inference to determine the nature of a larger set

Answer 7

Backward Reasoning

Question 8

What is a one-sample hypothesis test?

Answer 8

A hypothesis test wherein the researcher compared the nature of one sample to a target/ideal/certain value (*EX: Is the departure time of EE1 students earlier than 7am?)

Question 9

What is a two-sample hypothesis test?

Answer 9

A hypothesis test that compares the nature of two samples (EX: is the departure time of EE1 students earlier that EA1 students?)

Question 10

Experiment vs Survey

Answer 10

In an experiment, you have variables you can control — in a survey, you can only specify the type of data you’re going to collect and from how many