stats project (9) donuts

12
Generic VS VS Name brand Team members: Ashley Flores Chris Lopez

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Post on 26-Jun-2015

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DESCRIPTION

A well-designed and well-executed project on tastes of donuts by Ashley and Chris. Though no significant results were found, the presentation was elegantly delivered.

TRANSCRIPT

Page 1: Stats Project (9) Donuts

Generic VS VS Name brand

Team members:

Ashley Flores

Chris Lopez

Page 2: Stats Project (9) Donuts

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

? ? Can you taste the Can you taste the difference btwndifference btwn

? ? Hostess Donettes & Little DebbiesHostess Donettes & Little Debbies

? ? Powdered donuts?Powdered donuts?

??

??

??? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

Page 3: Stats Project (9) Donuts

Ho: No donuts Ho: No donuts preferred preferred

U = UU = U

Ha: Preference btwn Ha: Preference btwn donutsdonuts

U > UU > U

A BA B

A BA B

Page 4: Stats Project (9) Donuts

Matched/paired Matched/paired

One-sample One-sample t t Test Test

n= 30n= 30

Page 5: Stats Project (9) Donuts

Random

at least 30 teachers Normal

n > 30 Independent

Met 10% condition

Page 6: Stats Project (9) Donuts

Sampling procedure Sampling procedure (:(:

•Simple Simple randomrandom

•n=30n=30

•99thth- 12- 12thth grade grade teachersteachers

Page 7: Stats Project (9) Donuts

Sample Sample A-BA-B Freq.Freq.

-3-3

-2-2

-1-1

00

11

22

33

44

44

44

66

33

11

77

22

33

Page 8: Stats Project (9) Donuts

0

x

xt

s

n

t=0.559t=0.559

p= .29p= .29

=0.05=0.05

Test Statistics Test Statistics

Page 9: Stats Project (9) Donuts

Conclusion

Since p > .05 we fail to reject Null hypothesis .

Page 10: Stats Project (9) Donuts

D’OH!

• Teachers were in a rush!

• Dieting

• No difference

Page 11: Stats Project (9) Donuts

• Provide water for each taste

• When they have more time

• Give “b” first rather than “a”

• Where do they shop

Page 12: Stats Project (9) Donuts