Question

There is some concern that if a woman has an epidural to reduce pain during childbirth, the drug can get into the baby's bloodstream, making the baby sleepier and less willing to breastfeed. In December $2006,$ the International Breastfeeding Journal published results of a study conducted at Sydney University. Researchers followed up on 1178 births, noting whether the mother had an epidural and whether the baby was still nursing after 6 months. Here are their results: a) What kind of test would be appropriate? b) State the null and alternative hypotheses. (TABLE CAN'T COPY)

Name: Problem 15, Chapter 25: Stats Modeling the World 4th
Uploaded: 2021-05-03T22:13:01-08:00
Duration: 2 min 2 s
Channel: Jerrah Biggerstaff

   There is some concern that if a woman has an epidural to reduce pain during childbirth, the drug can get into the baby's bloodstream, making the baby sleepier and less willing to breastfeed. In December $2006,$ the International Breastfeeding Journal published results of a study conducted at Sydney University. Researchers followed up on 1178 births, noting whether the mother had an epidural and whether the baby was still nursing after 6 months. Here are their results: 
a) What kind of test would be appropriate?
b) State the null and alternative hypotheses.
(TABLE CAN'T COPY)

Stats Modeling the World 4th

David E. Bock, Paul… 4th Edition

Chapter 25, Problem 15

Instant Answer

Solved by Expert Jerrah Biggerstaff

05/03/2021

Step 1

Given that we are looking at the relationship between two categorical variables (whether the mother had an epidural and whether the baby was still nursing after 6 months), an independence test would be the most suitable. This test will help us determine if there Show more…

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There is some concern that if a woman has an epidural to reduce pain during childbirth, the drug can get into the baby's bloodstream, making the baby sleepier and less willing to breastfeed. In December $2006,$ the International Breastfeeding Journal published results of a study conducted at Sydney University. Researchers followed up on 1178 births, noting whether the mother had an epidural and whether the baby was still nursing after 6 months. Here are their results: a) What kind of test would be appropriate? b) State the null and alternative hypotheses. (TABLE CAN'T COPY)

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Key Concepts

Categorical Data Analysis

This involves analyzing data that is sorted into distinct groups or categories. When both the predictor and outcome variables are categorical, such as treatment versus control or success versus failure, this type of analysis is essential for investigating potential associations between these variables.

Chi-square Test of Independence

A common statistical test used to determine whether there is a significant association between two categorical variables. It compares observed frequencies in each category with expected frequencies if there were no association, thereby helping to assess independence between the variables.

Hypothesis Testing

A fundamental concept in statistics where two competing hypotheses—the null hypothesis and the alternative hypothesis—are formulated. The null hypothesis typically posits that there is no association or effect, whereas the alternative hypothesis suggests that there is an association or effect between the variables.

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