Use the Following Information for Questions

Multiple Choice

Use the following information for questions:
A random sample of 100 students living in dormitories was selected to see whether students in dormitories were satisfied with the food being served in the cafeteria.
-An additional group of 10 students, not selected in the sample, asked to be included so that their opinions could be heard. Adding these students to the sample

A) is a good idea because the margin of error would decrease.
B) is a good idea because students who have a strong opinion about the food should be represented in the sample.
C) is not a good idea because the margin of error would increase.
D) is not a good idea because the resulting sample may not be representative of the population of all students living in dormitories.