Chi-Square Goodness-of-Fit Test Conclusion
A biologist conducted a chi-square goodness-of-fit test to compare the current distribution of butterfly species in a forest against a known historical distribution. The test produced a statistic of χ² = 16.2 with 4 degrees of freedom and a p-value of 0.003. Which statement represents the most appropriate conclusion based on these results?
A
The p-value shows the observed differences are due to random chance.
B
The chi-square value indicates the sample was too small to draw conclusions.
C
The degrees of freedom suggest the test lacks sufficient power.
D
The current butterfly species distribution differs significantly from historical patterns.
Question Leaderboard
Not enough data yet to show leaderboard.