Why are all the answers on here CK-12 related?

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

Adam has been trying to work on expressing his anger in a calm manner, rather than screaming and yelling. his doctor recommended different breathing techniques to enhance his and express himself positively

Which person should increase calorie intake due to a lifestyle choice? a. an adult who is often sedentary b.an athlete c.a student getting ready for school exams d.an older woman