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Homework: HW6.2 Save Score: 0 of 2 pts 9 of 9 (7 complete) HW Score: 64.62%, 8.4 of 13 pts 6.3.33 Question Help Oil field pipes are internally coated in order to prevent corrosion. Researchers at a university investigated the influence that coating may have on the surface roughness of oil field pipes. A scanning probe instrument was 1.66 2.52 used to measure the surface roughness of each section in a sample of 10 sections of coated interior pipe. The 2.32 1 16 data (in micrometers) are shown in the table to the right. A Minitab analysis of the data is given below. 1 17 2.12 Complete parts a and b 2 14 1.97 One-Sample T: ROUGH 2.32 1 48 Variable N Mean StDev SE Mean 95% CI ROUGH 10 1 88600 0.48997 0. 15494 (1.53550, 2.23650) a. Locate a 95% confidence interval for the mean surface roughness of coated interior pipe on the accompanying Minitab printout (Type integers or a decimals.)