Answered: Birth Rates: Data Set 4 “Births” in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Birth Rates: Data Set 4 “Births” in Appendix B lists birth weights from babies born at Albany Medical Center, Bellevue Hospital in New York City, Olean General Hospital, and Strong Memorial Hospital in Rochester, New York. After partitioning the birth weights according to the hospital, we get the StatCrunch display (i.e., the ANOVA Table) shown below. Use a 0.05 significance level to test the claim that the different hospitals have different mean birth weights.

1. If k equals 4 samples (four hospitals) and n equals 100 (one hundred births from each hospital), what is the numerator degrees of freedom?

2. What is the denominator degrees of freedom?

ANOVA Table

Source	DF	SS	MS	F-Stat	P-Value
Columns	3	1701400	567133.33	1.1810493	0.3167
Error	396	1.90157e8	480194.44
Total	399	1.918584e8

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