Consider the following computer output for a 23 factorial experiment.

(a) How many replicates were used in the experiment?

(b) Use the appropriate equation to calculate the standard error of a coefficient.

(c) Calculate the entries marked with €œ?€ in the output.

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Estimated Effects and Coefficients SE Coef Effect Coef Term Constant 583.57 115.40 0.000 A 5.40 в 20.94 10.47 2.07 0.072 -41.73 -20.86 -4.13 0.003 A*B 26.93 13.46 2.66 0.029 -20.41 -10.20 -2.02 0.078 3.91 1.96 0.39 0.709 A*B*C -6.04 -12.07 -1.19 0.267 S = 20.2279 Analysis of variance Source DF MS в 1753.4 1753.40 4.29 0.072 6965.0 6964.95 17.02 0.003 7.09 0.029 A*B 2900.8 2900.76 1665.9 1665.93 4.07 0.078 0.15 0.709 61.3 61.25 1.42 0.267 A*B*C 583.1 583.06 Residual 3273.4 409.17 error Total 15 17319.5