Use the Minitab macro BayesMultReg or the R function bayes.lm with a multivariate normal prior to t a multiple linear regression model to this data set. An initial choice of prior might be b₀ = 0 and V₀ = 10⁶I₇, where I₇ is a 7 x 7 identity matrix. This is a very diffuse prior centered on zero.