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