How Accurate are Our Measurements? Homework Problem Set #2 Measurement Systems Analysis (MSA)

You are the Qulaity Manager at Robotic Grippers Incorporated. You are experiencing rejects at final inspection on an inside diameter of a nylon sleeve. You just attended a class on MSA at your local college and decided to ask your two inspectors to participate in two MSA trials using two sets of parts

Trial A - Data measured by two different operators using two different instruments on the same parts (i.e. Mike's 0.256" was measured by Ann as a 0.260")

Part Tolerance is 0.250" +/- .030"

Measurement Trial - Mike using Dial Caliper #1 0.256 0.243 0.235 0.263 0.278 0.238 0.239 0.251 0.266 0.252 0.241 0.267 0.249 0.265 0.259 0.248 0.278 0.271 0.250 0.239 0.259 0.253 0.231 0.234 0.230 0.249 0.261 0.248 0.250 0.248 Measurement Trial - Ann using Dial Caliper #2 0.260 0.252 0.243 0.273 0.279 0.245 0.247 0.253 0.259 0.260 0.259 0.270 0.255 0.274 0.264 0.251 0.277 0.273 0.245 0.256 0.265 0.249 0.235 0.237 0.242 0.255 0.264 0.259 0.249 0.258

  Trial B - Study rerun with new parts using two different operators using the same instrument.

Measurement Trial - Mike using Dial Caliper #1 0.273 0.252 0.249 0.267 0.263 0.269 0.260 0.245 0.256 0.233 0.257 0.259 0.251 0.242 0.262 0.238 0.239 0.257 0.245 0.259 0.257 0.240 0.254 0.245 0.266 0.245 0.259 0.244 0.260 0.245 Measurement Trial - Ann using Dial Caliper #1 0.268 0.247 0.246 0.257 0.261 0.253 0.255 0.244 0.255 0.240 0.259 0.259 0.248 0.252 0.260 0.243 0.245 0.252 0.244 0.259 0.250 0.241 0.256 0.245 0.263 0.254 0.261 0.246 0.256 0.245

Based on your results would what action would you take as the Quality Manager? Post your finding to the discussion board.