What are the proportions for the colors of M&M candy colors? You will need one Medium (approximately 12 ounce) bags of M&M’s. You may choose from any of the following varieties:
Answer each of the questions below for your bags of candy in your project. Your final project should be in report form which includes the answers to the questions. The report should be typed. You may hand write neatly the mathematics symbols and your work. If you have any questions, you should contact your teacher.
|
Color |
Frequency |
Relative Frequency |
|
Blue |
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Brown |
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Green |
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Red |
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Orange |
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Yellow |
4) The “color” of M&M is what type of data (two answers)? (1 point)
5) Graph the data by using an appropriate chart. (May use excel and paste the graph in the report). State why you chose you type of graph. (5 points)
B) Proportion test (you may use <, >, or ≠ for H2):
Now, choose color. Just test one of the colors. Use the official proportion from M&M’s for p and compare to your proportion,. Use 5% for level of significance
C) Good ness of fit
1) Do you think that the data you have gathered agrees with the company’s claims? (2 points)
2) Identify a procedure that you could use to check the goodness of fit for your data on one of the variety of M & M’s. (1 point)
3) Identify the Ho and H1 you would use to verify the company’s claim. (4 points)
4) Display in a matrix the observed and expected cell values and perform a Chi-Square analysis for the one of M & M’s variety (10 points)
|
Color |
Observed |
Expected |
(O – E)²/E |
|
Blue |
|||
|
Brown |
|||
|
Green |
|||
|
Red |
|||
|
Orange |
|||
|
Yellow |
5) Write a word conclusion to the hypothesis test you have performed using the 1% level of significance. (Show all steps in your hypothesis test) (9 points)
D) Test for Independence
Now consider the type of M&M and the color. Use the one sample that you counted and one sample given to you (below) to test the hypothesis that the type of M&M is independent of the colors as listed.
1) Fill in your data in the chart below (3 points)
|
Actual |
Color |
Blue |
Brown |
Green |
Orange |
Red |
Yellow |
Total |
|
Plain |
Frequency |
126 |
99 |
35 |
86 |
67 |
83 |
496 |
|
Your M&M’s |
Frequency |
|||||||
|
Total |
2) Filled in the expected amounts (6 points)
E = (Row total)(Column Total)/ Sample Size
|
Expected |
Color |
Blue |
Brown |
Green |
Orange |
Red |
Yellow |
Total |
|
Plain |
||||||||
|
Your M&M’s |
||||||||
|
Total |
3) Identify the Ho and H1 you would use to verify the type of M&M is independent of the colors as listed.
4) Perform a Chi-Square analysis for the two of M & M’s variety
|
Chi-Square (O-E)2/E |
Color |
Blue |
Brown |
Green |
Orange |
Red |
Yellow |
Total |
|
Plain |
||||||||
|
Your M&M’s |
||||||||
|
Total |
5) Write a word conclusion to the hypothesis test you have performed using the 5% level of significance.
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