Statistics+Day+2009

Ideas for Statistics Day 2009 Workshop 1 For the investigative question.
 * Timing || Detail || Resources ||
 * 30 mins || Explore Situation 1

Do the popliteal lengths of boys at Karekare College tend to be greater than the popliteal lengths of girls at Karekare College.

Take a random sample of 30 boys and 30 girls from the Karekare College population.

Give a dot plot of the data.

Descriptions: We need to describe the features we see in the data. Starting point: • Overall visual non-numerical comparisons o Overlap o Shift o Unusual features

After the initial overall visual non-numerical comparisons: Make more detailed comparative descriptions of the features including use of summary statistics and specific observation values where appropriate Reflect and perhaps comment on these features using “I wonder. . .” and “I expect. . .” type statements, i.e., comment on any inferential thoughts

Comparisons are made: Between the groups (e.g., overlap, shift, spread and shape statements) Within each group (e.g., unusual observations) || Karekare College [|KarekareCollegedatacards.xls] [|karekarecollege.ftm] || Workshop 2 For the investigative question.
 * Timing || Detail || Resources ||
 * 30 mins || Explore Situation 1
 * 30 mins || Explore Situation 1

Do the popliteal lengths of boys at Karekare College tend to be greater than the popliteal lengths of girls at Karekare College.

Take a random sample of 30 boys and 30 girls from the Karekare College population.

Give a dot plot of the data.

Descriptions: We need to describe the features we see in the data. Starting point: • Overall visual non-numerical comparisons o Overlap o Shift o Unusual features

After the initial overall visual non-numerical comparisons: Make more detailed comparative descriptions of the features including use of summary statistics and specific observation values where appropriate Reflect and perhaps comment on these features using “I wonder. . .” and “I expect. . .” type statements, i.e., comment on any inferential thoughts

Comparisons are made: Between the groups (e.g., overlap, shift, spread and shape statements) Within each group (e.g., unusual observations) || Karekare College [|KarekareCollegedatacards.xls] [|karekarecollege.ftm] ||