Analysis of a random sample of 15 specimens of cold-rolled steelto determine yield strengths resulted in a sample mean strength of29. 8 and a standard deviation of 4. 0. A second random sample of14 specimens of galvanized steel resulted in a sample mean of 32. 7and a standard deviation of 5. 0. Does the data indicate that thetrue mean yield strengths for the two given populations(cold-rolled or galvanized) are different? Test at a= 0. 01. Makesure to find/estimate the p-value.
