Part C: Suppose you pick a different arbitrary start point on a random number generator. Repeat the process from Part A, but this time, follow these steps. Step 1: The random number generator yields the following 15 values: 158 , 328 , 97 , 286 , 294 , 378 , 31 , 309 , 419 , 386 , 371 , 150 , 180 , 403 , 277 Step 2: Go back to the tip table and record the tips for these 15 numbers. Step 3: Compute the sample mean. Round to the nearest tenth, if necessary. Sample mean = % Part D: Which sample mean should you use to make your inference? The mean found in Part C The mean found in Part A