Music vs. Fish Growth Pond Number Amount of time music played (hrs/day) Average mass of fish after 10 weeks (kg)
1
0
1.8
2
2
1.6
3
4
2.0
4
6
16
5
8
1.8
Dr. Trout has noticed that salmon in his fish hatchery seem to enjoy listening to the radio in his lab. The fish in the tank closest to
the radio seem to grow larger. Dr. Trout decides that the more music he plays, the larger the fish must grow. To test his idea, he
sets up 5 large ponds with 100 salmon in each pond. He places a loudspeaker at the middle of each pond and plays various
amounts of music in each one. He plays the same band, feeds the fish the same diet, and keeps water conditions in all tanks
exactly the same. After 10 weeks, he ends the trial and finds the average mass of the fish in each pond,
Dr. Trout's data is illustrated in the table. Which statement is most supported?
A)
Music has no effect, therefore the hypothesis is correct.
B)
Music has no effect, therefore the hypothesis is incorrect
Music increases mass, therefore the hypothesis is incorrect
D)
Music increases mass, therefore the hypothesis is correct.