Question

In: Statistics and Probability

Consider the following data from a study of the relationship between smoking status of the mother...

Consider the following data from a study of the relationship between smoking status of the mother and infant birth weight. Select the appropriate non-parametric test for data analysis and show the steps of hypothesis testing (α = 0.05).  

Non-smokers

Ex-smokers

Smoker (< ½ pack per day)

Smoker (≥ ½ pack per day)

8.56

7.39

5.97

7.03

8.47

8.64

6.77

5.24

6.39

8.54

7.26

6.14

9.26

5.37

5.74

6.74

7.98

9.21

8.74

6.62

6.84

6.30

7.37

4.94

6.34

Step 1: State hypotheses




Step 2: Select the appropriate test statistic




Step 3: Set up the decision rule




Step 4: Compute the test statistic




Step 5: Write your conclusion

Solutions

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