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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>

 
 Below is a pie chart showing the percentages of frequency for the grades recieved on Version 2 of the test.
 
 <result6>

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 z-score shows that I was .24 standard deviations above the mean, while their z-score 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.

 

Result 1: Version 1 Mean Median SD   [Info]

Summary statistics:


ColumnMeanMedianStd. dev.
Version179.2777788211.262101



Result 2: Version 2 Mean Median SD   [Info]

Summary statistics:


ColumnMeanStd. dev.Median
Version 284.1219519.39998785



Result 3: Histogram for version 1   [Info]
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Result 4: Histogram for version 2   [Info]
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Result 5: Pie Chart With Data for version 1   [Info]
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Result 6: Pie Chart With Data for version 2   [Info]
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Result 7: Pie Chart With Data for V1 pass/fail   [Info]
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Result 8: Pie Chart With Data for v2 pass/fail   [Info]
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Result 9: 5 Number summary V1   [Info]

Summary statistics:


ColumnMinQ1MedianQ3Max
Version15373.5828898



Result 10: 5 number summary V2   [Info]

Summary statistics:


ColumnMinQ1MedianQ3Max
Version 26477859498



Result 11: Boxplot for Versions   [Info]
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