Cucumbers can occasionally carry the E. coli bacteria. A company which specializes in large commodities of fruits and vegetables, has historically found 3% of their cucumbers have E. coli bacteria. Since this time, the company has taken extra precautions in the handling of goods. To determine if the proportion of cucumbers contaminated with E. coli has changed, a random sample of 800 cucumbers is taken and as a result, 1.2% do actually contain E. coli. (a) What alternative hypotheses should the company test? Ha: p 0.03 (b) The test statistic is -2.98. What is the conclusion at the =0.05 significance level? There is enough evidence to conclude the proportion of cucumbers that are contaminated with E. coli bacteria has changed. There is not enough evidence to conclude the proportion of cucumbers that are contaminated with E. coli bacteria has changed. There is not enough evidence to conclude the proportion of cucumbers that are contaminated with E. coli bacteria has not changed. There is enough evidence to conclude the proportion of cucumbers that are contaminated with E. coli bacteria has not changed