A study was conducted to assess how far the compressive strength of brick waste is used as a substitute for the main ingredient of sand as a concrete mixture. To determine the strength of concrete using a mixture of brick waste, 10 samples were made which were then compared with 10 samples of K-200 concrete. Table of results of compressive strength of concrete on day 28 No Sample 1 2 3 4 5 6 7 8 9 10 Concrete K-200 Mixed concrete waste bricks 292 238 320 310 288 208 264 253 258 214 255 243 320 241 247 292 292 199 265 208 With a=0.05, if it is assumed that the data is normally distributed, determine whether there is a significant difference between the compressive strength of K-200 Concrete and brick waste mixture