Select the correct answer from each drop-down menu.
Scientists investigated the effects of a chemical compound, chemical A, on the development of plants. They treated 100 seedlings with the chemical
and left 100 untreated. They allowed the seedlings to grow for one week, and then determined whether each had normal or abnormal development.
Their results are shown in the two-way table..
Normal Development
Abnormal Development
Total
No Chemical
98
2
100
Chemical A
64
36
100
Total
162
38
200
In the study,
% of all seedlings exhibited abnormal development.
In the study,
% of the seedlings treated with the chemical exhibited abnormal development, compared with
left untreated that exhibited abnormal development.
These findings suggest that chemical A is
development in the seedlings.
% of the seedlings