Participants rated their mood score out of 20 before and after listening to Reign in Blood by the thrash metal band Slayer. $\begin{array} { | c | c | }
\hline \text { Before Listening to Slayer } & \text { After Listening to } \mathbf { S l a y e r } \
\hline 5 & 14 \
\hline \mathbf { 8 } & \mathbf { 5 } \
\hline \mathbf { 9 } & 17 \
\hline 4 & 18 \
\hline \mathbf { 3 } & \mathbf { 8 } \
\hline 15 & 19 \
\hline 12 & 14 \
\hline \mathbf { 6 } & 16 \
\hline
\end{array}$
- What is the null hypothesis of this study?

Question

Participants rated their mood score out of 20 before and after listening to Reign in Blood by the thrash metal band Slayer. $\begin{array} { | c | c | } 
\hline \text { Before Listening to Slayer } & \text { After Listening to } \mathbf { S l a y e r } \
\hline 5 & 14 \
\hline \mathbf { 8 } & \mathbf { 5 } \
\hline \mathbf { 9 } & 17 \
\hline 4 & 18 \
\hline \mathbf { 3 } & \mathbf { 8 } \
\hline 15 & 19 \
\hline 12 & 14 \
\hline \mathbf { 6 } & 16 \
\hline
\end{array}$ 
- What is the null hypothesis of this study?

Quizplus · Accepted Answer

The null hypothesis typically states that there is no effect or no difference. In this context, it means that listening to Slayer does not affect mood score, implying no change in mood as a result of listening to the music.

Participants Rated Their Mood Score Out of 20 Before and After