Melissa Alvarez Jessica Huerta Laura Becerra Original vs. Baked
2012 AP Stats Project (5)
Jun 26, 2015
Melissa, Jessica, and Laura explored the relationship between grade level and Hot Cheetos preference in this study.
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Melissa AlvarezJessica HuertaLaura Becerra
Original vs. Baked
• Flamin' Hot Cheetos was introduced in 1981 by Frito-Lay
• Flamin' Hot Baked Cheetos was introduced in 2006 by Fritos inventor Charles Elmer from San Antonio, Texas.
Grade:9th 10th 11th 12th
Gender: Male FemaleOption: A or B
Ho: Gender and Cheetos preference are independent of each other.
Ha: Gender and type of Hot Cheetos are not independent of each other.
Conditions • Random
• Independent • Normal
16 (9.6)
17(16.9)
6(8.7)
10(13.7)
5(11.4)
20(20.06)
13(10.3)
20(16.3)
Original
Baked
9th 10th 11th 12th
21 37 19 30
49
58
107
Chi- Square 2
2 observed expected
expected
2 11.24
0.01
3
p
df
Reject Ho
Potential ErrorsTwo grade levels in one class room
Whispering
Melissa AlvarezJessica HuertaLaura Becerra
Original vs. Baked
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