ONLY NEED ANSWERS FOR 5.26!! 5.26. Refer to Plastic hardness Problems 1.22 and 5

Question

ONLY NEED ANSWERS FOR 5.26!!

5.26. Refer to Plastic hardness Problems 1.22 and 5.7.

c. Obtain the matrix of the quadratic form for SSE.

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a. Obtain the estimated regression function. Plot the estimated regression function and the data. Does a linear regressio function appear to give a good fit hear?

b. Obatin a point estimate of the mean hardness when X=40 hours.

c. Obtain a point estimate of the change in mean hardness when X increases by 1 hour.

i 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Xi 16 16 16 16 24 24 24 24 32 32 32 32 40 40 40 40 Yi 199 205 196 200 218 220 215 223 237 234 235 230 250 248 253 246

Explanation / Answer

ONLY NEED ANSWERS FOR 5.26!! 5.26. Refer to Plastic hardness Problems 1.22 and 5

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