Jacki Is Conducting a Study That Examines the Effects of Multi-Vitamins

Multiple Choice

Jacki is conducting a study that examines the effects of multi-vitamins on common cold symptoms. She hopes to generalize her findings to the school-age population of children in a specified region in her state. She knows the population of children is 9,000. She is going to do a survey study and decides to sample 7000 children. Regarding Jacki's sample we know that

A) it is substantially too small.
B) it is not representative.
C) it will result in large sampling bias.
D) it is substantially too big.