Chapter 5: The Many Variables and the Spurious Waffles

Easy

5E2.

\(Lat_i = \alpha + \beta_A A_i + \beta_P P_i\)

\(Lat\) is the Latitude, \(A\) is Animal Diversity and \(P\) is plant diversity.

5E3.

\(T_i = \alpha + \beta_F F_i + \beta_S S_i\)

\(T\) is the time to PhD, \(F\) is funding and \(S\) is size.

If both variables are positively associated with time to PhD, the coeffients for both variables will be greater than zero.

5E4. All of the models except for (2) are inferentially equivalent. You cannot calculate the posterior of the in (2) from any of the other models.

5E4.