The following display from a TI-84 Plus calculator presents the results of a hypothesistest for the difference between two means. The sample sizes are$n _ { 1 } = 10 \text { and } n _ { 2 } = 15$

How many degrees of freedom did the calculator use?
A) 20.308612
B) -4.343066
C) 19.308612
D) 0.000158

Question

The following display from a TI-84 Plus calculator presents the results of a hypothesistest for the difference between two means. The sample sizes are$n _ { 1 } = 10 \text { and } n _ { 2 } = 15$

How many degrees of freedom did the calculator use?
A) 20.308612 
B) -4.343066 
C) 19.308612 
D) 0.000158

Quizplus · Accepted Answer

The Answer of The following display from a TI-84 Plus calculator presents the results of a hypothesistest for the difference between two means. The sample sizes are$n _ { 1 } = 10 \text { and } n _ { 2 } = 15$

How many degrees of freedom did the calculator use?
A) 20.308612 
B) -4.343066 
C) 19.308612 
D) 0.000158

The Following Display from a TI-84 Plus Calculator Presents the Results