Biology, 18.04.2020 04:30, makaylaf395

A pharmaceutical company hypothesizes that Chemical X prevents the common cold. It signs up a group of 16,000 volunteers to test out Chemical X. The company divides the volunteers into four 4,000-person groups, each of which takes a pill with different amounts of sugar and Chemical X. The results are shown in the table. RESULTS OF TRIAL Group Amount of Sugar in Pill (g) Amount of X in Pill (g) % Reporting Colds 1 5 0 20 2 5 1 19 3 5 3 22 4 5 9 21 Which statement best describes what can be concluded from the results?

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A pharmaceutical company hypothesizes that Chemical X prevents the common cold. It signs up a group...