Visualize two dependent samples

Type or paste the dependent (paired, e.g. before&after)) data: must be same sizes.
Sample 1:
Sample 2:

    

n=

Sample 1: x̄=      s=
Sample 2: x̄=      s=

Differences di=X1i-X2i
d̄ sample mean of the differences: = ∑di / n

Use in T-Test (for Mean differences) 

Cholesterol before and after heart attack
270 236 210 142 280 272 160 220 226 242 186 266 206 318 294 282 234 224 276 282 360 310 280 278 288 288 244 236
218 234 214 116 200 276 146 182 238 288 190 236 244 258 240 294 220 200 220 186 352 202 218 248 278 248 270 242