Chapter 3 Project
Generated Oct 2, 2019 by zairexp3
Chapter 3 Project
Below is the data for the scores recieved on two different versions of a test.
<data1>
1. Below are the mean, median, and standard deviation of the scores recieved on Version 1 of the test.
<result1>
Below are the mean, median, and standard deviation of the scores recieved on Version 2 of the test.
<result2>
2. Below is a histogram displaying the frequency of the scores from Version 1 of the test.
<result3>
Below is a histogram displaying the frequency of the scores from Version 2 of the test.
<result4>
3. Below is a pie chart showing the percentages of frequency for the grades recieved on Version 1 of the test.
<result5>
4. Below is a pie chart showing the number and percentages of passes and fails on Version 1 of the test.
<result7>
Below is a pie chart showing the number and percentages of passes and fails on Version 2 of the test.
<result8>
5. If I was to recieve an 82 on Version 1 of the test and my friend was to recieve an 82 on Version 2 of the test, my friend who took Version 2 did relatively better. This is because my zscore shows that I was .24 standard deviations above the mean, while their zscore is .22 standard deviations below the mean.
6. Below is the 5 number summary for the scores recieved on Version 1 of the test.
<result9>
Below is the 5 number summary for the scores recieved on Version 2 of the test.
<result10>
7. Below is a box plot for the scores recieved on Version 1 and 2 of the test.
<result11>
8. Looking at the data in the various charts, we can assume that the tests were not of equal difficulty; on average, more students scored lower on Version 1 than they did on Version 2.
Summary statistics:

Summary statistics:

Summary statistics:

Summary statistics:
