I need help in answering the questions below from Craig A. Mertler & Rachel Reinhart statistical textbook, 6th edition on path analysis (exercises for chapter 8) :

The following exercises utilize the path model depicted below as well as the data set country-c.sav. Specifically, the variables of lndocs (z1), lngdp (z2), deathrat (z3), birthrat (z4), and lifeexpf (z5) will be utilized.

1. Determine the path decompositions for the model. Be sure to label which are direct (D), indirect (I), unanalyzed (U), and spurious (S).

2. Identify the regression analyses necessary for testing this initial model.