06.05

library(tidyverse)

## Warning: package 'dplyr' was built under R version 4.5.2

## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
## ✔ dplyr     1.1.4     ✔ readr     2.1.5
## ✔ forcats   1.0.1     ✔ stringr   1.5.2
## ✔ ggplot2   4.0.0     ✔ tibble    3.3.0
## ✔ lubridate 1.9.4     ✔ tidyr     1.3.1
## ✔ purrr     1.1.0     
## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## ✖ dplyr::filter() masks stats::filter()
## ✖ dplyr::lag()    masks stats::lag()
## ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors

library(lsr)

## Warning: package 'lsr' was built under R version 4.5.2

library(broom)
library(ggplot2)

egzersiz_yapan <- c(18,20,22,19, 17, 21, 23, 20)
egzersiz_yapmayan <- c(25, 28, 30, 27,26, 29, 31, 28)

stres <- c(egzersiz_yapan, egzersiz_yapmayan)
grup<- factor(c(rep("Yapan", length(egzersiz_yapan)),
                rep("Yapmayan", 
                length(egzersiz_yapmayan))))
egzersiz_veri <-data.frame(grup, stres)
egzersiz_veri

##        grup stres
## 1     Yapan    18
## 2     Yapan    20
## 3     Yapan    22
## 4     Yapan    19
## 5     Yapan    17
## 6     Yapan    21
## 7     Yapan    23
## 8     Yapan    20
## 9  Yapmayan    25
## 10 Yapmayan    28
## 11 Yapmayan    30
## 12 Yapmayan    27
## 13 Yapmayan    26
## 14 Yapmayan    29
## 15 Yapmayan    31
## 16 Yapmayan    28

sonuc_egzersiz <- wilcox.test(stres~grup, 
                              data=egzersiz_veri)

## Warning in wilcox.test.default(x = DATA[[1L]], y = DATA[[2L]], ...): cannot
## compute exact p-value with ties

sonuc_egzersiz

## 
##  Wilcoxon rank sum test with continuity correction
## 
## data:  stres by grup
## W = 0, p-value = 0.0009229
## alternative hypothesis: true location shift is not equal to 0

wilcox.test(egzersiz_yapan, egzersiz_yapmayan)

## Warning in wilcox.test.default(egzersiz_yapan, egzersiz_yapmayan): cannot
## compute exact p-value with ties

## 
##  Wilcoxon rank sum test with continuity correction
## 
## data:  egzersiz_yapan and egzersiz_yapmayan
## W = 0, p-value = 0.0009229
## alternative hypothesis: true location shift is not equal to 0

##egzersiz yapan ve yapmayan öğrencilerin stres düzeyleri arassında anlamlı bir fark bulunmuşturr ##(w=0, p<.001)