Dr Ross's Diet Pills Are Supposed to Cause Significant Weight

Essay

Dr. Ross's diet pills are supposed to cause significant weight loss. The following table shows the results of a recent study where a random sample of individuals took part in a placebo controlled study.
​ $$\begin{array} { c | c c | c } & \text { Diet Pills } & \text { No Diet Pills } & \text { Total } \\\hline \text { No Weight Loss } & 80 & 20 & 100 \\\text { Weight Loss } & 100 & 100 & 200 \\\hline \text { Total } & 180 & 120 & 300\end{array}$$ ​
With 95% confidence, determine if weight loss is dependent upon taking the diet pills.