SpongeBob calculated the correlation coefficient between hou

SpongeBob calculated the correlation coefficient between \"hours studied\" and \"test grade\" with a sample size of 6.

If r = .61, choose all the statements that are true.

Question 8 options:

When testing whether r is significant in this example, the degrees of freedom (df) is df = 4.

The critical value for significance is .598

The results show a negative correlation.

The results show that studying more causes test grades to increase.

The observed r value is not statistically significant under an alpha level = .05.

Solution

ANS:

When testing whether r is significant in this example, the degrees of freedom (df) is df = 4

The results show that studying more causes test grades to increase.

Reason: It is pstive corrleation between them, if one variable increased other will also increase & degrres of freedom is n-2 = 6-2 = 4