following a sample of 6 patients who were give a medication to lower their cholesterol level for one week. client before after 1 158 151 2 205 200 3 170 169 4 189 179 5 149 144 6 135 129 test whether the medication was effective (hint: reduced the cholesterol level!). use 5% significance level. state the test you used , test statistics, p-value and decision? group of answer choices t-test for paired samples , test statistic
