1. Inference
Questions

2. WHAT MAKES A GOOD QUESTION?
It is written in the form of a question
It can be answered with the data supplied
The population of interest is clear
The variables of interest are specified (with variables)
The intent is clear (summary, comparison or relationship)
One that is interesting: is the answer useful?

3. Data source: NZ census at schools, 2014
I WONDER IF THE
MALE
MEDIAN
HEIGHTS (CM)
LARGER
COMPARED TO
FEMALES?

4. Write your question(s) using this data
Gender: male or female Bag carry: shoulder used to carry school bag (left, right) Height: height without shoes (to nearest cm) Right foot: length of right foot without a shoe (nearest cm) Wrist: circumference of wrist (nearest cm) Neck: circumference of neck (nearest cm) Index finger: length of index finger (nearest mm) Number of siblings: how many brothers and sisters a student has

5. Write your question(s) using this data
Gender: male or female Labour: number of votes National :number of votes Income: income net per week for full time workers (nearest $10) Wrist: circumference of wrist (nearest cm) Neck: circumference of neck (nearest cm) Index finger: length of index finger (nearest mm) Number of siblings: how many brothers and sisters a student has