![Picture](/uploads/2/7/4/7/27479607/1299177.png?912)
Situation- Cubit length and height of student at Aorere
College
Question- I wonder if there is a relationship between Cubit Length and height of Student at Aorere College.
Plan:
Height- We will measure height in Centimetre using a ruler/ measuring tape. Take you shoes off and stand against a wall, feet flat on the ground. Look straight but the ruler on the top of their head then mark where it is them get the measuring tape and measure from the bottom/ floor to the mark and record you answer. We measure effect is that they don’t stand straight.
Cubit Length- is from elbow to middle yip of your finger you can measure it in centimetre so the measurement are smaller hence rounding up. Tell the person to put there arm straight and measure the length in centimetre using a measuring tape. Make sure their fingers are straight so we can fully measure the length and therefore the data reliabity will increase. We measure effect is that they don’t out their arm straight.
We collected data as a group, we went to ask some student if we can measure their height and cubit length.
There appears to be a linear relationship between Height and Cubit Length for our sample. I notice that the relationship is positive because as the height increases the cubit length increases. I notice that the relationship is moderate because the data values lie moderately close to the line best fit. The closer the data lays to the line of best fit, the stronger the relationship between the variables. I notice that the scatter is non- constant. We can see this by the level of spread around the line of best fit increase as the height increase. This is a positive relationship as height increase the cubit length also increases. The relationship is linear because the points lie approximately in a straight line with a positive slop. It’s a moderate relationship the data values are close to the trend line but do not hug it tightly. Points are a little separated.
Reflections:
The data we collected is limited in its values, varying between 39cm and 180cm. This means that any conclusions we drew are only valid within this same range. Furthermore, investigations on values of these limits would be useful to gain better understanding of the exact nature of relationship between Height and Cubit Length.
As we taken a sample rather than a census, our conclusions are only able to be applied directly to the data we have collected to see whether these are representative of the population, we would need to collect a far greater sample size in order to increase our accuracy and reliability of the conclusions. If I repeated this investigation again, something I would do differently in order to improve accuracy and reliability are to get a bit more sample.
Carlene Guan
Question- I wonder if there is a relationship between Cubit Length and height of Student at Aorere College.
Plan:
Height- We will measure height in Centimetre using a ruler/ measuring tape. Take you shoes off and stand against a wall, feet flat on the ground. Look straight but the ruler on the top of their head then mark where it is them get the measuring tape and measure from the bottom/ floor to the mark and record you answer. We measure effect is that they don’t stand straight.
Cubit Length- is from elbow to middle yip of your finger you can measure it in centimetre so the measurement are smaller hence rounding up. Tell the person to put there arm straight and measure the length in centimetre using a measuring tape. Make sure their fingers are straight so we can fully measure the length and therefore the data reliabity will increase. We measure effect is that they don’t out their arm straight.
We collected data as a group, we went to ask some student if we can measure their height and cubit length.
There appears to be a linear relationship between Height and Cubit Length for our sample. I notice that the relationship is positive because as the height increases the cubit length increases. I notice that the relationship is moderate because the data values lie moderately close to the line best fit. The closer the data lays to the line of best fit, the stronger the relationship between the variables. I notice that the scatter is non- constant. We can see this by the level of spread around the line of best fit increase as the height increase. This is a positive relationship as height increase the cubit length also increases. The relationship is linear because the points lie approximately in a straight line with a positive slop. It’s a moderate relationship the data values are close to the trend line but do not hug it tightly. Points are a little separated.
Reflections:
The data we collected is limited in its values, varying between 39cm and 180cm. This means that any conclusions we drew are only valid within this same range. Furthermore, investigations on values of these limits would be useful to gain better understanding of the exact nature of relationship between Height and Cubit Length.
As we taken a sample rather than a census, our conclusions are only able to be applied directly to the data we have collected to see whether these are representative of the population, we would need to collect a far greater sample size in order to increase our accuracy and reliability of the conclusions. If I repeated this investigation again, something I would do differently in order to improve accuracy and reliability are to get a bit more sample.
Carlene Guan