A simple random sample of 16 different cereals isobtained, and the sugar content(in grams of sugar per gram ofcereal) is measured for each cereal selected. Those amounts have a mean of 0.29 gram and a standard deviation of 0.169 gram. Use a 0.05 significance level to test the claim of a cereal lobbyist that the mean for all cereals is less than 0.31 gram.

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

A.

H0: =0.31

Ha: >0.31

B.

H0: <0.31

Ha: =0.31

C.

H0: =0.31

Ha: <0.31

D.

H0: =0.31

Ha: