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.