1) Use SPSS Descriptive Statistics or Explore to make descriptive statistics for birth weights in four groups.
2) Produce the ANOVA analysis for comparing mean birth weights in four groups which comprises checking for homogeneity of variance, checking normality of data and posthoc comparison using the LSD and Bonferroni methods.
Group

Weights

1.0

8.56008195795898

1.0

8.46939228585178

1.0

6.38552943397618

1.0

9.26111357022699

1.0

7.9802908793965

1.0

6.83561167863096

2.0

7.38936258959395

2.0

8.63791582759472

2.0

8.53675984287149

2.0

5.37423410110727

2.0

9.2098508977083

3.0

5.96702106699159

3.0

6.77388078522797

3.0

7.26037066741066

3.0

5.73559678547691

3.0

8.74187521344758

3.0

6.29843331288047

4.0

7.03233277230828

4.0

5.24364138426296

4.0

6.1372977670622

4.0

6.73731550085886

4.0

6.62218430457621

4.0

7.37086776357572

4.0

4.93788275980933

4.0

6.33778926178895
