GPS1021 IRMS Week 11 & 12

Question 1

If the sample data falls within alpha level, the null hypothesis H0 is rejected.

Accepted Answer

True

Question 2

Inferential statistics use sample data to draw general conclusions about populations.

Accepted Answer

True

Question 3

The null hypothesis H0 and the alternative hypothesis H1 are mutually exclusive and exhaustive.

Accepted Answer

True

Question 4

A dependent variable is...

Accepted Answer

what experimenters measure in an experiment.

Question 5

Type 1 error is false positive, means that...

Accepted Answer

researcher ascertains a treatment effect when it has none.

Question 6

An independent variable is...

Accepted Answer

what experimenters manipulate in an experiment.

Question 7

A z-test can be used in hypothesis testing if the population mean and SD are known.

Accepted Answer

True

Question 8

The alpha level is the probability value used to define the concept of "very unlikely".

Accepted Answer

True

Question 9

Inferential statistical techniques use probabilities to draw inferences from sample data.

Accepted Answer

True

Question 10

Which of the following describes a between-subject design?

Accepted Answer

Each participant is assigned to only one of the conditions.

Question 11

There are how many steps in Hypothesis Testing?

Accepted Answer

4

Question 12

Type 2 error is false negative, means that...

Accepted Answer

researcher has failed to detect a real treatment effect.

Question 13

Which is NOT a scale of measurement?

Accepted Answer

Discrete

Question 14

Which of the following describes a within-subject design?

Accepted Answer

Each participant is assigned to all conditions.

Questions 14