Hello all,
I'm trying to check for normality using Shapiro-Wilk normality test.
I have a two-way ANOVA (2x3) and would like to run this test on each of the 6 groups.
Data set:
| x1 |
x2 |
y |
| Group 1 |
Group 1 |
900 |
| Group 1 |
Group 1 |
600 |
| Group 1 |
Group 1 |
800 |
| Group 1 |
Group 2 |
600 |
| Group 1 |
Group 2 |
100 |
| Group 1 |
Group 2 |
1000 |
| Group 1 |
Group 3 |
600 |
| Group 1 |
Group 3 |
800 |
| Group 1 |
Group 3 |
900 |
| Group 2 |
Group 1 |
200 |
| Group 2 |
Group 1 |
1000 |
| Group 2 |
Group 1 |
1000 |
| Group 2 |
Group 2 |
1100 |
| Group 2 |
Group 2 |
900 |
| Group 2 |
Group 2 |
1100 |
| Group 2 |
Group 3 |
900 |
| Group 2 |
Group 3 |
600 |
| Group 2 |
Group 3 |
900 |
Which function should I use to be able to run it per group?
Thank you!!! 