# Biostatistics2

Answer in step by step form!!!!

 Birth Weight (kg) Gestation Age Hospital of birth Birth Weight Gestation age Hospital of Birth (kg) (weeks) (kg) (Weeks) 1.4 30 A 1 29 C 0.9 27 B 1.4 33 C 1.2 33 A 0.9 28 A 1.1 29 C 1 28 C 1.3 35 A 1.9 36 B 0.8 27 B 1.3 29 B 1 32 A 1.7 35 C 0.7 26 A 1 30 A 1.2 30 C 0.9 28 A 0.8 28 A 1 31 A 1.5 32 B 1.6 31 B 1.3 31 A 1.6 33 B 1.4 32 C 1.7 34 B 1.5 33 B 1.6 35 C 1 27 A 1.2 28 A 1.8 35 B 1.5 3 B 1.4 36 C 1.8 34 B 1.2 34 A 1.5 34 C 1.1 28 B 1.2 30 A 1.2 30 B 1.2 32 C

1. Consider the data in listed in the table above.

1. Assuming population variances are equal; construct an appropriate 95% confidence interval for the difference in mean Gestation Age between infants born in Hospital B and Hospital C.
2. Provide an interpretation of the interval in part a.
3. Assuming population variances are not equal; construct an appropriate 95% confidence interval for the difference in mean Gestation Age between infants born in Hospital A and Hospital B.
4. Assuming the population variances are equal, construct an appropriate 90% confidence interval for the difference in mean Birth Weight between infants born in Hospital A and Hospital C.
5. Provide an interpretation of the interval in part d.