The manufacturer of a generic medication claims the drug has as much active ingredient as the best-selling name brand, a mean of
175 mg per tablet. A consumer research group had a random
sample of the generic drug tested. The results are shown below.
Find the mean and standard deviation of the sample.
Active Ingredients per Tablet (mg)
166 173 183 171 162
163 177 184 183 171
166 178 181 167 179
179 172 189 172 180
177 186 168 162 171
168 166 171 187 186