Question

Home work: A psychological researcher believes that extra playtime with infants will result in a higher average weight at 2 years age. The average weight of humans at 2 years of age is 26 pounds with a standard deviation of 3.5 pounds for the general population. The researcher plans an experiment with 36 infants. She instructs the parents of the 36 infants to spend extra time playing with the infants and then determines their weights at 2 years of age. Would this be a one-sided or two-sided test? State the null and Alternative hypothesis.​

Answer 1

Answer:

That means before 37 weeks of pregnancy. A premature baby has less time in the mother's womb (uterus) to grow and gain weight. Much of a baby's