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.

Question

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.

Quizplus · Accepted Answer

Adding students to the sample who specifically asked to be included could introduce bias, as these students may have stronger opinions (either positive or negative) about the cafeteria food compared to the general population of students living in dormitories. This could result in a sample that is not representative of the overall student population in dormitories, affecting the validity of the study's findings.

Use the Following Information for Questions