A university economist conducted a study of elementary school lunch menus. During the state-mandated testing

A university economist conducted a study of elementary school lunch menus. During the state-mandated testing period, school lunches averaged 889 calories. The economist claimed that after the test period ended, the average caloric content of the school lunches dropped significantly. Set up the null and alternative hypothesis to test the economist’s claim.

Choose the correct answer below.

A.      H_o: u = 889; H_a: u != 889

B.      H_o: u = 889; H_a: u > 889

C.      H_o: u = 889; H_a: u < 889

D.      H_o: u != 889; H_a: u < 889