Statistics Quiz

Question 1

Type 2 Error is rejecting the null when the null is probably true.

Accepted Answer

False

Question 2

What does Sig. value of .024 imply about Type I error?

Accepted Answer

It means you have a 2.4% chance of committing a Type 1 error

Question 3

“Students w/ regular study habits get higher grades than those w/ irregular study habits.” The p-value threshold must be

Accepted Answer

.05

Question 4

ANOVA & T-tests are similar except that ANOVA compares 3+ groups of nominal var, whereas T-test compares 2 groups.

Accepted Answer

True

Question 5

"F(2,12)= 10.05, p<.05" Which test is this an equation for?

Accepted Answer

ANOVA

Question 6

A news report says teaching has more job satisfaction than being an accountant. Which test will you run to test this?

Accepted Answer

T-test

Question 7

There are 3 types of skewness, all of them depend on the___. (Select all that apply)

Accepted Answer

mode, tail, mean, median

Question 8

Alternative hypothesis is the same as the research hypothesis.

Accepted Answer

True

Question 9

To run One Way ANOVA, can this 3-item scale be your DV?

Accepted Answer

Yes! Because it is a continuous variable.

Question 10

Percentage is an example of ___________.

Accepted Answer

Descriptive statistics

Question 11

For a one-tailed hypothesis, when p is lesser than ____, we ____ the null, and declare that the results are ___________.

Accepted Answer

.05, reject, statistically significant

Question 12

________ describes a sample and ________ describes a population

Accepted Answer

Statistics , parameter

Question 13

Consider the hypothesis: Lions roar louder than Tigers. Is this a one-tailed or two-tailed hypothesis?

Accepted Answer

One-tailed

Questions 13