> av_data1_all<-s_complete %>% + group_by(Gender_SNB, num_SNB)%>% + dplyr::summarize(prop=mean(num_SNB), synch = sum(num_SNB), + n = n()) `summarise()` has grouped output by 'Gender_SNB'. You can override using the `.groups` argument.

What is the problem here?


## 8.0 References

1. https://en.wikipedia.org/wiki/Statistical_inference
2. https://en.wikipedia.org/wiki/Statistical_hypothesis_testing
3. http://www.stat.yale.edu/Courses/1997-98/101/meancomp.htm
4. https://cran.r-project.org/web/packages/lme4/vignettes/lmer.pdf
5. https://cran.r-project.org/web/packages/lmerTest/vignettes/lmerTest.pdf
6. https://neuroconductor.org/packages/release/bioc/html/jmv.html
7. https://neuroconductor.org/packages/release/bioc/html/lme4.html
8. https://neuroconductor.org/packages/release/bioc/html/lmerTest.html
9. https://neuroconductor.org/packages/release/bioc/html/pbkrtest.html