DRAGONS
PROBLEM
I wonder if the median heights of male dragons tends to be greater than the median heights of female dragons back in the population of dragons on Dragon Island.
I wonder if the median heights of male dragons tends to be greater than the median heights of female dragons back in the population of dragons on Dragon Island.
PLAN
I will take my random sample from the Dragon Island survey team. The sample size is 52 female and 60 male dragons. NZGrapher will generate a dot plot and a box and whisker graph so I can analyze and make a conclusion about which gender is taller.
I will take my random sample from the Dragon Island survey team. The sample size is 52 female and 60 male dragons. NZGrapher will generate a dot plot and a box and whisker graph so I can analyze and make a conclusion about which gender is taller.
DATA
ANALYSIS
Central Tendency:
The median height of male dragons is 6m and the median height of female dragons is 5.5m, a difference of 0.5m. This indicates that male dragons on average are taller than female dragons back in the population of dragons on Dragon Island.
SPREAD
The boxes (middle 50%) for male and female dragons are very similar in spread. Their ranges are also very similar. This indicates that there is the same amount of variation in the heights of male and female dragons.
CONCLUSION
Based on looking at my sample I am reasonably confident that back in the population of all dragons on Dragon Island that male dragons tend to be taller than female dragons.
If I took another sample of dragons I would expect to get similar results, Male dragons will be taller.