1. This below contains cholesterol data on the cholesterol level for individuals before and after a treatment. Does this data present strong evidence that the treatment lowered cholesterol levels? Perform the appropriate hypothesis test at the alpha = 0.05 level and report the p-value to at least at least 2 significant digits

before	after
202.2488	187.8221
193.8275	202.2463
209.1332	194.2488
194.498	207.6774
208.8629	200.1185
197.3047	177.7873
199.6334	188.4466
209.2158	213.5608
227.2463	232.8056
209.0375	205.6398
232.9677	230.8417
159.4328	160.7618
191.0149	171.4244
204.7199	193.9028
183.2965	159.995
174.4809	164.9899
212.3407	216.8334
212.254	214.4284
205.7876	223.6659
207.9063	204.5736