Computer Science homework help

Computer Science homework help. Mr. Jones and the New Worksheet
Mr. Jones wanted to check if there was an observable impact of a particular worksheet on his students’ test scores for Chapter 1.  His idea was to test if there was a significant variation in the average test score of the class that used the worksheet in comparison to the class that did not.  In the class before lunch, he used the worksheet but not the class after lunch.  He has 23 students in each of the two classes.  Their test scores are below:

Before Lunch After Lunch
86 79 23 67
59 45 74 46
98 67 38 90
81 80 14 79
32 72 38 63
35 84 51 38
31 60 18 56
57 20 44 70
68 43 27 33
24 16 16 14
31 58 24 30
82   95  
       

 
 

  1. Which test are you using?
  2. What are your H0 (null hypothesis) and Ha (alternative hypothesis)?
  3. Calculate your statistic.
  4. What decision does this inform you to make and why? (You may use the critical value in the chart or the calculated p-value, but you must indicate what you are doing.)
  5. Write a one to two sentence conclusion that correctly responds to the question. Use APA format to report your statistic  [(df)=1.1, p<.05]

 
 
 
 

  1. A particular resource class must perform at a level consistent with the rest of the school to avoid being discontinued. On the first quarter statewide test, the mean score of the school was 84.  The 14 students in the resource class had a 76.17 mean test score and a 17.52 standard deviation.  The district informs the principal that the class should be discontinued because the average is below that of the rest of school.  Is this reasonable or does the principal have evidence to support an argument against this decision?

 

  1. Which test are you using?
  2. What are your H0 (null hypothesis) and Ha (alternative hypothesis)?
  3. Calculate your statistic.
  4. What decision does this inform you to make and why? (You may use the critical value in the chart or the calculated p-value, but you must indicate what you are doing.)
  5. Write a one to two sentence conclusion that correctly responds to the question. Use APA format to report your statistic  [(df)=1.1, p<.05]

 

Computer Science homework help