Statistics Paper

Submitted By Treeca
Words: 1045
Pages: 5

Coloured numbers vs black numbers Problem:
Does colour affect a person’s ability to recall numbers? Hypothesis:
I believe that more people will remember the numbers in colour more than the ones in black. Research:
According to http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3743993/ colour helps us memorize information as colour boosts our attention levels up. Colours such as yellow, red and orange has been shown to bring more attention than others colours. Plan:
In this experiment the class will come in and sit down we will ask if anyone is coloured blind if so they will have to sit out. We will then hand the student that are doing the test a sheet of paper to write down the numbers they remember from each slide, making it clear to everyone taking the test that writing while studying the numbers is not allowed. We will use a powerpoint to display 10 black numbers for 10 seconds these numbers will be selected from the random key on the calculator ranging from 1­ 100, after 10 seconds the numbers will disappear and a blank, white screen will come up for 20 seconds, in this time they can write down the numbers they recall. After those 20 seconds the slide will automatically pop up the next slide of 10 numbers for 10 seconds then another white screen will appear for 20 seconds this will continue for a series of 5 slides. After this test is done we will collect the sheets of paper for marking each slide will get a mark out of 10 then we will calculate their total score for that black and white test.
Their total score will be out of 50. In the next lesson we will perform the next test. At the beginning of this lesson the students will get another piece of paper to write their numbers on.
This test will be repeated under the same circumstances with the only difference being coloured numbers instead of black, each number will be randomly coloured. The numbers will also be different to the numbers on the previous test. We will randomly colour them by having 10 numbers 1­10 each number will represent a colour eg 1 green 2 red ect. Then we will use the random key on the calculator 1­10 to choose which colour the number will be. After this test is complete will collect the papers in for marking again. Three people will be walking around the room during both tests to check that no one is writing when they are memorizing the numbers , if anyone is seen doing this then there test will be removed from the rest of the data. One person will be at the front controlling the slide. We used the random key on the calculator to give the numbers and colours because we believed that picking the numbers and colours ourselves will make it bias. Explanatory variable: The explanatory variable will be the different coloured numbers that we will be using. Response variable: This will be the amount of numbers the students get right. After both tests are complete. Graphs

No Colour (Box & Whisker Graph):

The box & whisker graph and the summary statistic chart shows that the the median of the no colour recall is 28 percent. The middle 50% of people who recalled the numbers with no colour got between 22 and 36 percent. The interquartile of the no colour recall is 14 percent.

Color (Box & Whisker Graph):

The box & whisker graph and the summary statistic chart shows that the median of the colour recall is 32 percent. The middle 50% of people who recalled the numbers in colour got between
25 and 34 percent. The interquartile of the colour recall is 9 percent.

Differences Between No Colour and Colour:

The box & whisker graph and the summary statistic…