PROBLEM: POSE A COMPARISON INVESTIGATIVE QUESTION.
The purpose of the
investigation needs to be clear.
Students must demonstrate an understanding of the population from which the sample will be taken.
The investigative question that is posed must involve a comparison. The investigative question needs to:
A suitable question would be Is the median height of NZ year 12 boys greater than the median height of NZ year 12 girls back in the population? You can also add a prediction like I think that boys will be taller.
Students must demonstrate an understanding of the population from which the sample will be taken.
The investigative question that is posed must involve a comparison. The investigative question needs to:
- identify the variables, for example gender and height
- identify the population groups, for example NZ year 12 girls and NZ year 12 boys
- identify the population parameter the inference will be about, and the direction of the comparison, for example NZ year 12 boys are taller than NZ year 12 girls.
A suitable question would be Is the median height of NZ year 12 boys greater than the median height of NZ year 12 girls back in the population? You can also add a prediction like I think that boys will be taller.