Birth Weight Problem: Previously, the average birth weight of full term babies was cited to be around 7.4 pounds. Some have suggested that the average birth weight of full term babies has decreased in recent years. To test whether the average birth weight of full term babies born today is lower than 7.4 pounds, researchers took a random sample of 400 full term babies and recorded their birth weight. The sample mean birth weight was 7.35 pounds and the sample standard deviation was 0.75 pounds. Perform a hypothesis test to determine whether this data presents evidence that the birth weight of full term babies has decreased. Use a significance level of 0.05 Which of the following are the appropriate hypotheses for this test? H0:=7.4 vs. Ha:>7.4 H0:1=2 vs. Ha:1=2 H0:1=2 vs: Ha:12 H0:=7.4 vs. Ha: