According toresearch, holiday shoppers spent an average of $372 over a holiday weekend in 2008. The accompanying data show the amount spent by a random sample of holiday shoppers during the same weekend in 2009. Complete parts a and b below.

a. Retailers were concerned that the recent economic downturn was going to affect holiday sales. Does this sample support these concerns using =0.10?

Determine the null and alternative hypotheses. Choose the correct answer below.

A.H0:=372 and H1:372

B.H0:372 and H1: >372

C.H0:372 and H1:<372

Determine the criticalvalue(s).

The criticalvalue(s) is(are)