Exam 7

7. According the USDA, 46.2% of males between 20 and 39 years old consume the minimum daily requirement of calcium. After an aggressive "Got Milk?" campaign, the USDA conducts a survey of 48 randomly selected males between the ages of 20 and 39 and finds that 32 of them consume the recommended daily allowance of calcium. At the alpha=0.05 level, is there evidence to conclude that the percentage of males between the ages of 20 and 39 who consume the minimum recommended daily allowance of calcium has increased