Mars Inc. claims that they produce M&Ms with the following distributions:
| Brown |
30% |
Red |
20% |
Yellow |
20% |
| Orange |
10% |
Green |
10% |
Blue |
10% |
A bag of M&Ms was randomly selected from the grocery store shelf, and the color counts were:
| Brown |
23 |
Red |
21 |
Yellow |
20 |
| Orange |
16 |
Green |
15 |
Blue |
14 |
Find the 95% confidence interval for the proportion of yellow M&Ms in that bag.
a) [0.111, 0.256]
b) [0.161, 0.166]
c) [0.031, 0.256]
d) [0.111, 0.056]
e) [0.011, 0.206]
f) None of the above