ORANGE CHICKEN  PREFERENCE                 Brian Cerjak                 Marissa Doi                  Period 4             ...
• Largest American  Chinese fast food  chain• Founded in 1983• Orange Chicken,  Beijing Beef,  Mandarin Chicken,  and Kung...
• Independently owned• Chinese Kitchen in Albertson’s found approx. 1998• Orange Chicken, BBQ Pork, Fried Rice, & Chow Mein
MORE “CLUCK” FOR YOUR BUCK!!!  $35.00           $25.99
SURVEY• What is your gender?   • Male   Female• Which orange chicken  did you prefer?   • A             B
Male   Female   TotalAlbertsons(A)          6 18 24Panda(B)          9 22 31Total             15 22 55
CHI SQUARE (CONDITIONS)  • Random  • Large Expected value  • Independent             Male          Female   TotalAlbertson...
CHI SQUARE• Ho : Gender and orange chicken preference are independent.• Ha : Gender & orange chicken preference are not in...
CHI SQUARE            2         observed expected                                                    2                    ...
1-PROP Z TEST         (NOT GENDER SENSITIVE) Ho : p = 0.5 and                 Ha : p > 0.5Where p is the true %of people w...
1-PROP Z TEST YOU           Fail to reject the Ho .               Cannot conclude that the true proportion of people whoFA...
We are 90% confident that the1-PROP Z INTRERVAL   true proportion will lay                     somewhere in between 0.45  ...
WHAT DA “CLUCK”!!!!!
ORANGE CHICKEN  PREFERENCE                 Brian Cerjak                 Marissa Doi                  Period 4             ...
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2012 AP Stats Project (6)

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Brian and Marissa really wanted to show that one brand of orange chicken is more preferrable than another. Did the data support their claim?

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2012 AP Stats Project (6)

  1. 1. ORANGE CHICKEN PREFERENCE Brian Cerjak Marissa Doi Period 4 6-8-12
  2. 2. • Largest American Chinese fast food chain• Founded in 1983• Orange Chicken, Beijing Beef, Mandarin Chicken, and Kung Pao Chicken
  3. 3. • Independently owned• Chinese Kitchen in Albertson’s found approx. 1998• Orange Chicken, BBQ Pork, Fried Rice, & Chow Mein
  4. 4. MORE “CLUCK” FOR YOUR BUCK!!! $35.00 $25.99
  5. 5. SURVEY• What is your gender? • Male Female• Which orange chicken did you prefer? • A B
  6. 6. Male Female TotalAlbertsons(A) 6 18 24Panda(B) 9 22 31Total 15 22 55
  7. 7. CHI SQUARE (CONDITIONS) • Random • Large Expected value • Independent Male Female TotalAlbertsons 6 18 24 (6.5) (17.5)Panda 9 22 31 (8.5) (22.5)Total 15 22 55
  8. 8. CHI SQUARE• Ho : Gender and orange chicken preference are independent.• Ha : Gender & orange chicken preference are not independent.
  9. 9. CHI SQUARE 2 observed expected 2 expected YOU Fail to reject the Ho . Fail to support that they are NOT FAIL!!!! independent. 2 0.11 p 0.74 df 1
  10. 10. 1-PROP Z TEST (NOT GENDER SENSITIVE) Ho : p = 0.5 and Ha : p > 0.5Where p is the true %of people who preferPanda ExpressOrange Chicken
  11. 11. 1-PROP Z TEST YOU Fail to reject the Ho . Cannot conclude that the true proportion of people whoFAIL!!!! prefer Panda Express is greater than 0.5  p 0.56 z 0.94 p 0.17
  12. 12. We are 90% confident that the1-PROP Z INTRERVAL true proportion will lay somewhere in between 0.45 and 0.67.
  13. 13. WHAT DA “CLUCK”!!!!!
  14. 14. ORANGE CHICKEN PREFERENCE Brian Cerjak Marissa Doi Period 4 6-8-12

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