M&M Chi-Square Activity
M&M Chi-Square Activity
What type of M&M’s do you have? _____________________
In your group, count the number of each color of M&M and record below.
|Color |Brown |Yellow |Red |Blue |Orange |Green |Total |
|Observed | | | | | | | |
|Expected | | | | | | | |
These are the distributions (percentages) for the various types of M&M’s:
|Type |Brown |Yellow |Red |Blue |Orange |Green |
|Plain |13 |14 |13 |24 |20 |16 |
|Peanut |12 |15 |12 |23 |23 |15 |
Does the evidence suggest that the distribution of colors in your bag match the company’s distribution of colors?
Now, combine your data with a group who has a different type of M&M’s.
|Type |Brown |Yellow |Red |Blue |Orange |Green |
|Peanut | | | | | | |
|Plain | | | | | | |
Does the evidence suggest that the distribution of colors in your type of M&M’s match the distribution of colors in the other type of M&M’s?
Next, select a sample from the bowl & fill out this chart.
|Type |Brown |Yellow |Red |Blue |Orange |Green |
|Peanut | | | | | | |
|Plain | | | | | | |
Does the evidence suggest that the distribution of colors is dependent on the type of M&M’s?
Eye Dominance Activity
(Adapted from Statistics in Action, Watkins, Scheaffer, & Cobb, p. 416)
1) Determine which eye is your dominate eye by following these instructions:
• Hold the paper (with 1 inch square hole in the middle) at arm’s length.
• Look through the square at a relatively small object across the room.
• Without changing your position, close your right eye.
• If you can still see the object, your left eye is your dominate eye.
• If not, your right eye is your dominate eye.
2) Record the following information:
• Dominate eye
• Dominate hand
• Gender
3) On the big poster paper, record your data by putting a tally mark in the correct box.
| | |Gender |
| | |Male |Female |
| |Right Eye | | |
| |Left Eye | | |
| | |Dominate Hand |
| | |Right Hand |Left Hand |
| |Right Eye | | |
| |Left Eye | | |
Does the evidence suggest that there is an association between gender and eye?
Does the evidence suggest that there is an association between hand dominance and eye dominance?
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What type of cð2 test is this?
What type of cð2 test is this?
What type of cð2 test is this?
Dominate Eye
Dominate Eye
χ2 test is this?
What type of χ2 test is this?
What type of χ2 test is this?
Dominate Eye
Dominate Eye
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