Question: A study found that the correlation coefficient between temperature inside of the hamster house in their cage and the length of hamsters' nap is -.60

A study found that the correlation coefficient between temperature inside of the hamster house in their cage and the length of hamsters' nap is -.60 based on a sample size of 18.

This correlation coefficient suggests that:

A. as temperature decreases, length of the hamsters' nap would decrease.

B. as temperature increases, length of the hamsters' nap would decrease.

C. as temperature increases, length of the hamsters' nap would increase.

D. as temperature decreases, length of the hamsters' nap would remain the same.

The degrees of freedom for the significance testing to see if this correlation coefficient is different from zero

A. is 16.

B. is 19.

C. is 18.

D. is 17.

If the significance levels is set at .05, then the cutoff for this significant testing is:

A. 2.132

B. 2.093

C. 2.101

D. 2.120

The test statistic for this significant testing is:

A. -2.54

B. -6.00

C. -2.00

D. -3.00

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