Fact or Bluff Quiz

Fact or Bluff Quiz

11th Grade

9 Qs

quiz-placeholder

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Fact or Bluff Quiz

Fact or Bluff Quiz

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Arvin Gutierrez

Used 7+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Pearson correlation coefficient (r) can only take values between -1 and 1.

Fact

Bluff

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the computed t-value is greater than the critical t-value, we accept the null hypothesis.

Fact

Bluff

Answer explanation

If t-computed is greater than t-critical, we reject the null hypothesis.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A strong positive correlation means that one variable causes the other to increase.

Fact

Bluff

Answer explanation

Correlation does not imply causation.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The degrees of freedom for the t-distribution in correlation testing is calculated as n - 2.

Fact

Bluff

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the p-value in a correlation test is less than the significance level (α), we conclude that the correlation is statistically significant.

Fact

Bluff

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The t-distribution is used in hypothesis testing when the population standard deviation is unknown and the sample size is small.

Fact

Bluff

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A correlation of 0 always means that there is no relationship between two variables.

Fact

Bluff

Answer explanation

A correlation of 0 means no linear relationship, but there could be a non-linear relationship.

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