Answer Happy

Amanufactorer of paper is interested in improving the product's tensile strength. Product engineering believes that tensile strength is a function of the hardwood concentration in the pulp. Suppose that the two treatments at the 5% and 10% concentration are analyzed. The data from this experiment are shown in the table below. Tensile Strength of Paper (psi) 5% hardwood 10% hardwood concentration Observation concentration 1 7 12 2 8 17 15 13 4 11 18 5 9 19 6 10 15 a a) Compare these two treatments with a two-sample r-test and compute the P-value. Assume that o 10 Round your answer to two decimal places le.g. 9.87). to = 1 -3.48 0.01< P-value < 0.02 b) Compare these two treatments with the ANOVA method, and show that the square of the t statistic in part (a) equals the value of the fo statistic in this part. Compute the P-value for the test of no treatment differences. Round your answer to two decimal places leg.9.87). fo = 1214 Round your answer to three decimal places (e.g. 9.876). P= 6 to 1 0.01 c) Comment on the results in parts (a) and (b). First metod givels) that factor means differ significantly at the significance level of 0.01.