Executive Summary

Our company recenlty measured iris flower and get the irirs dataset. We would like to know more about the data.

Introduction’

Our company recenlty measured iris flower and get the irirs dataset. We would like to know more about the data. - How are the variables correlated to each other? - What is the distribution of eachvariable in teh dataste? - How are the variables same to each other?

Data source

recenlty measured iris flower and get the irirs dataset

key findings

How are the variables correlated to each other?

Correlation Matrix
## 
## Please cite as:
##  Hlavac, Marek (2022). stargazer: Well-Formatted Regression and Summary Statistics Tables.
##  R package version 5.2.3. https://CRAN.R-project.org/package=stargazer
##              sepal.length sepal.width petal.length petal.width
## sepal.length    1.0000000  -0.1181293    0.8737381   0.8206195
## sepal.width    -0.1181293   1.0000000   -0.4260283  -0.3628942
## petal.length    0.8737381  -0.4260283    1.0000000   0.9627723
## petal.width     0.8206195  -0.3628942    0.9627723   1.0000000

We can infer….

Correlation Petal Length and Petal Width
## Warning: package 'pander' was built under R version 4.5.3
## Warning: package 'broom' was built under R version 4.5.3
## 
## Pearson
## [1] 0.9627723
## 
## Spearman
## [1] 0.9376545
## 
## Kendall
## [1] 0.8065882
Table continues below
estimate statistic p.value parameter conf.low conf.high
0.9628 43.18 2.082e-85 147 0.9489 0.9729
method alternative
Pearson’s product-moment correlation two.sided

We can infer….

Correlation Sepal Length and Sepal Width
## 
## Pearson
## [1] -0.1181293
## 
## Spearman
## [1] -0.1681023
## 
## Kendall
## [1] -0.0786184
Table continues below
estimate statistic p.value parameter conf.low conf.high
-0.1181 -1.442 0.1513 147 -0.2737 0.0435
method alternative
Pearson’s product-moment correlation two.sided

We can infer….

What is the distribution of eachvariable in teh dataste?

Normality Petal Length
## 
## ---------------
## Variable: petal.length
## ---------------
## 
## Normality Test
statistic p.value method
0.8768 8.635e-10 Shapiro-Wilk normality test

Pvalue < 0.05, we can reject null hypothesis. We accept hypothesis: it is not normally distributed.

Normality Petal Width
## 
## ---------------
## Variable: petal.width
## ---------------
## 
## Normality Test
statistic p.value method
0.9019 1.853e-08 Shapiro-Wilk normality test

’Pvalue < 0.05, we can reject null hypothesis. We accept hypothesis: it is not normally distributed.

Normality Sepal Length
## 
## ---------------
## Variable: sepal.length
## ---------------
## 
## Normality Test
statistic p.value method
0.9756 0.009234 Shapiro-Wilk normality test

Pvalue < 0.05, we can reject null hypothesis. We accept hypothesis: it is not normally distributed.

Normality Sepal Width
## 
## ---------------
## Variable: sepal.width
## ---------------
## 
## Normality Test
statistic p.value method
0.985 0.1062 Shapiro-Wilk normality test

Pvalue < 0.05, we can reject null hypothesis. We accept hypothesis: it is not normally distributed.

How are the variables same to each other?

Wilcoxon Test Petal Petal Width
statistic p.value method alternative
19099 4.976e-27 Wilcoxon rank sum test with continuity correction two.sided

Pvalue < 0.05, we can reject null hypothesis.

Wilcoxon Test Sepal LengthSepal Width
statistic p.value method alternative
22199 2.084e-50 Wilcoxon rank sum test with continuity correction two.sided

Pvalue < 0.05, we can reject null hypothesis.