A food processor makes canned soup. In its old process, the sodium level per can was known to have a mean of 720 mg and a standard deviation of 60.0 mg; as well, 70.0% of the cans met the product specification. The processor recently redesigned its process. In a sample of 29 cans from the new process, the sodium level had a mean of 740 mg and a standard deviation of 40.0 mg; 88.3% of the cans met the product specification. Management wants to know whether there is a difference between the old and new processes with respect to the percentage meeting the specification. Perform and interpret the most appropriate statistical test to answer the manufacturer's question.