A biology class hypothesizes that bats are most active during twilight hours (the period of dim light surrounding sunrise and sunset). The class counts how many bats they observe flying in a grove of trees during a 24-hour period. Based upon their graphed data, how should they evaluate their hypothesis?

Question

A graph is labeled, bat activity over a 24-hour period. The X axis is labeled, time in hours. The Y axis is labeled, number of bats. The graph starts at 10 on the Y axis, increases to 15 around 4 hours, then drops to 0 between 6 and 16 hours, increases gradually to 18 hours, and then increases significantly between 19 and 21 hours to almost 40 bats. There is a drop-off from 22 to 24 hours back toward 10 bats.
The hypothesis is partially supported.
The hypothesis is supported.
The hypothesis is proved correct.
The hypothesis is falsified.

Answer 1

The hypothesis is supported. The graph shows that bats are most active during the twilight hours, with a significant increase in activity between 19 and 21 hours. This aligns with the hypothesis that bats are most active during twilight hours.