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 used to measure the surface roughness of each section in a sample of 10 sections of coated interior pipe. The data (in micrometers) are shown in the table to the right. A Minitab analysis of the data is given below. Complete parts a and b. 1.77 2.37 1.24 2.15 2.33 2.45 1.01 201 1.92 1.51 One-Sample T: ROUGH 95% CI 0.15543 (1.52439, 2.22761) SE Mean StDev Mean N Variable 1.87600 0.49151 10 ROUGH 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.) frect: ? Enter your answer in the edit flelds and then click Check Answer Chec Ansier CearAl 1 part remaining a ere to search

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.