1. Describe the relationship between process capability and gage capability.

2. Conduct a variable gage study, using the Average and Range method for the following data:

A. Given a tolerance of +/- 4.5

OPERATOR A OPERATOR B

PART TRIAL 1 TRIAL 2 TRIAL 1 TRIAL 2

1 71 70 75.1 77.4

2 69.5 70.5 71.1 71.8

3 70 72 75.5 78.8

4 72 72.5 79.7 81.2

5 66 67 65.7 65.8

6 66.5 67 68.7 69

7 67.5 70 72 72.7

8 69.5 74 70.1 70.3

9 67 70 79.5 80.2

10 67 68 69.2 69

B. Given a tolerance of +/- 100

OPERATOR A OPERATOR B OPERATOR C

PART TRIAL 1 TRIAL 2 TRIAL 1 TRIAL 2 TRIAL 1 TRIAL 2

1 184 186 171 177 176 175

2 186 188 178 185 182 185

3 186 188 190 182 189 189

4 190 188 180 169 187 184

5 186 190 176 178 180 184

6 236 228 230 233 231 228

7 242 236 228 231 232 226

8 240 232 224 236 234 227

9 178 180 184 185 182 180

10 172 176 179 177 175 172

3. Interpret the results of problem #2 above in terms of :

A. R&R as a percent of tolerance

B. R&R as a percent of total variation

C. Repeatability versus Reproducibility and actions recommended to improve each.

4. Describe an attribute gage study. Include number of operators, trials, and parts, and what is required for the gage to be acceptable.