The answer is D, the vitamins did not help the children that took them, it actually made them more sick than average and the placebo doesnt matter because it wasnt the real vitamins. So the Wellness pharmaceuticals claim is false.
D. Wellness pharmaceutical company's claim is false; therefore, it can be concluded that the Wellness children's vitamin does not reduce the number of days a child is sick in a year.
There's really not enough information here to make that claim. We're not given any information on the standard deviations. About the strongest thing we can say with certainty at this point is that the very hardworking Elizabeth could not confirm Wellness Pharmaceutical Corp's claim. Elizabeth's data may prove the stronger statement; we'd have to see more of it to know.
