Misprint in Stock and Watson

To clarify any confusions prior to the seminars, I would like to inform that in eq. (3.29) in Stock and Watson (Third edition) pp.130 which we use for Q3.21 there is a minor misprint.

In the very last part of the expression, the subscript on the Y-bar should be a w and not m.

Hope this makes you able to solve also the last questions for the seminars next week.

Sincerely,

Herman