stats project (10) toy story 3
DESCRIPTION
A confidence interval study by Stephanie, Ben, and Abner. They studied the rating of Toy Story 3. A beautiful set of slides.TRANSCRIPT
![Page 1: Stats Project (10) Toy Story 3](https://reader033.vdocument.in/reader033/viewer/2022061213/54985aafac795987318b4a56/html5/thumbnails/1.jpg)
The stats story of
Steph Abner
Ben
![Page 2: Stats Project (10) Toy Story 3](https://reader033.vdocument.in/reader033/viewer/2022061213/54985aafac795987318b4a56/html5/thumbnails/2.jpg)
What is the true rating for
Toy story 3?
![Page 3: Stats Project (10) Toy Story 3](https://reader033.vdocument.in/reader033/viewer/2022061213/54985aafac795987318b4a56/html5/thumbnails/3.jpg)
• It is a C.I. or Estimate• There is no Ho or Ha
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What type of test?
Why a 1-sample T interval for
Of course!!
![Page 5: Stats Project (10) Toy Story 3](https://reader033.vdocument.in/reader033/viewer/2022061213/54985aafac795987318b4a56/html5/thumbnails/5.jpg)
RandomNormal n30 n=50Independent10%condition met
Conditions
![Page 6: Stats Project (10) Toy Story 3](https://reader033.vdocument.in/reader033/viewer/2022061213/54985aafac795987318b4a56/html5/thumbnails/6.jpg)
Sampling Procedure
“Do you think Toy Story 3Is a great movie?”
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10
9
8.5
8
7
6
5
4
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• t *
Confidence Interval
xs
tn
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Conclusion• We are 99% confident that the true mean
value for Toy Story 3 is in the interval from (8.037, 9.063)
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• Convenience sample• Embarrassed to say they liked it• Only surveyed H.S. students
Potential Errors:
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• Ask various age groups• Don’t wait last minute
RECOMMENDATIONS
![Page 12: Stats Project (10) Toy Story 3](https://reader033.vdocument.in/reader033/viewer/2022061213/54985aafac795987318b4a56/html5/thumbnails/12.jpg)