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. The population of children is 9,000. She is going to conduct a survey and decides to sample 7000 children. Regarding Jacki's sample we know that
◦ it is substantially too big.
◦ it is not representative.
◦ it will result in large sampling bias.
◦ it is substantially too small.