Hypothesis Testing Paper

Essay by rhaskellUniversity, Bachelor'sA, October 2006

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Have you just found out that you're pregnant? You are probably wondering how far along you are, and you likely have many questions about how your body is changing and the symptoms you are experiencing. Doctor visits during the first trimester are a good time to address questions. Prenatal care is the care you get while you are pregnant. This care can be provided by a doctor, midwife or other health care professional. The single most important thing you can do to increase the chance that you will have a healthy baby is to get early and regular prenatal care.

The goal of prenatal care is to monitor the progress of a pregnancy and to identify potential problems before they become serious for either mom or baby.

All mothers-to-be benefit from prenatal care. Women who see a health care provider regularly during pregnancy have healthier babies, are less likely to deliver prematurely, and are less likely to have other serious problems related to pregnancy.

Resident doctors at a local hospital wanted to calculate the mean weight of babies born using a new pre-natal care vitamin supplement after their fourth week. The goal was to have a mean weight of 10 pounds 8 ounces. The subsequent weights of a sample of four week old babies were in pounds. At the .05 significance level can we conclude that the pre-natal supplement was effective in increasing the babies weight over the four week period.

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Formulation of the null and the alternative hypotheses

Specification of the level of significance

Calculation of the test statistic

Definition of the region of rejection

Selection of the appropriate hypothesis