In the listed information is the findings statistically significant? Why or Why not? Describe the process used to make that determination and provide the level of significance.

Among the more than 513,000 women and their 1.1 million infants studied, scientists found that women who gained more than 53 pounds (24 kilograms) during their pregnancy made babies who were about 150 grams (0.3 pounds) heavier at birth than infants of women who gained only 22 pounds (10 kilograms).

In the U.S., more than a third of women of normal weight and more than half of overweight and obese women gain more weight than their doctors recommend.

The Institute of Medicine, an independent, nonprofit organization that advises the U.S. government, says normal-weight women should gain 25 to 35 pounds (11 to 16 kilograms) during pregnancy, while overweight and obese women should gain 11 to 25 pounds (5 to 11 kilograms).