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Consider the following summary data on the modulus of elasticity (X 10 psi) for lumber of three different grades in close agr

Strength and Stiffness of Second-Growth Douglas-Fir Dimension Lumber : 35-43) except that the sample sizes there were larger

Pls answer the follow:

1. Problem 10.5 page 419 a. What is x..? b. What is SSTr? c. Compute s2 for each group d. Compute SSE. e. Compute SST. Put SS

Consider the following summary data on the modulus of elasticity (X 10 psi) for lumber of three different grades in close agreement with values in the article "Bending
Strength and Stiffness of Second-Growth Douglas-Fir Dimension Lumber" : 35-43) except that the sample sizes there were larger] Forest Products J, 1991 Grade J 10 10 10 1.63 27 1.56 ·24 1.42 .26
1. Problem 10.5 page 419 a. What is x..? b. What is SSTr? c. Compute s2 for each group d. Compute SSE. e. Compute SST. Put SSTr, SSE, and SS Total into ANOVA table f. What are DF for ANOVA table? g. Compute MSTr and MSE. h. Compute the F statistic i. State hypotheses for the F test. j. What are DF for the F test? What is the.05 upper tail F critical value? k. State a conclusion about the test.
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3 te- o-.-2286 3 J-2 2 0. 26 : 829 270,2286 二一一0,1283 SSE rn 2 + under null hythe sis The means of all-the s Hi Notail the means are equal. 3433 2,2 accept it mea

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