from the book:

Total of about 5.5 lbs. (88 oz.) bulky weight yarns or yarns that can be combined to equate them. About 25 oz. of this in one color for edgings and hat, the rest (about 4 lbs.) in various colors, depending on personal preference.

Note. the pattern says Rainbow Stripe Coat with Matching Hat but the pictures include a scarf. The yarn amounts may include the scarf or not. In any case the scarf looks easy enough to reproduce using the coat’s pattern.

stitch markers
scissors
needle
6.5 mm (K) hook