Does Breakfast Really Affect Your GPA
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Transcript of Does Breakfast Really Affect Your GPA
By
Hussain Tiewala
Jai Anjaria
Avinash Reddy
Vanessa Rebelo
Madhavi Karra
Does Breakfast really affect your G.P.A?
Conventional wisdom says :
Eat Breakfast like a king, lunch like a prince, dinner like a pauper.
•Data collection
•Population size
•Procedure
•Hypothesis: “students who eat breakfast more frequently have better GPA”
•H0= “breakfast has no effect on GPA”
2 4 6 8 100
10
20
30
40
50
60
70
80
90
04
7
80
85
GPA vs No. of students
GPA
No. of students
For GPAs
Mean 7.80Median 7.98Mode 8.05Std Dev 1.083861
20 40 60 80 100 120 140 160 180 2000
5
10
15
20
25
30
35
40
23
37
2523 23
97
1211
6
No. of times B/f eaten vs No. of students
no. of times breakfast eaten
No. of students
For the no. of times the students ate B/f
Mean 74.01705Median 64Mode 28Std dev 52.18905
20 40 60 80 100 120 140 160 180 2006.80
7.00
7.20
7.40
7.60
7.80
8.00
8.20
8.40
8.60
7.40 7.44
7.707.58
8.18
8.34
7.67
8.238.37
8.49
Freq of Breakfast eaten vs Avg GPA
No. of times breakfast eaten
avg GPA
Freq. of B/f Avg GPA20 7.4140 7.4560 7.7080 7.58 7.53
100 8.18120 8.34140 7.75160 8.23180 8.31200 8.49 8.22
Chi SquareObserved <74.03 >74.03 total<7.8 53 19 72>7.8 48 56 104total 101 75 176
Expected <74.03 >74.03 total<7.8 41.31818182 30.68182 72>7.8 59.68181818 44.31818 104total 101 75 176
Chi Square test:
P= 0.000292742
Hypothesis= “students who eat breakfast more frequently have better GPA”
H0=“breakfast has no effect on GPA”
P value= 0.000292742
H0 is rejected.
Therefore, students who eat breakfast more frequently have better GPA.
Conclusion
Referenceshttp://www.amerymedicalcenter.org/amery2.nsf/View/breakfast
http://nutrition.about.com/od/nutrition101/a/breakfast.htm
http://www.mrbreakfast.com/article.asp?articleid=7
http://www.breakfastandbrunch.com/about.php