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Create a bar graph using the attached Iris dataset: iris_exams.csv

by | Feb 15, 2022 | Computer Science | 0 comments

by | Feb 15, 2022 | Computer Science | 0 comments

Create a bar graph using the attached Iris dataset: iris_exams.csv

Question 1

Please submit a Rmarkdown (word format) report capturing the following:Use the attached Iris Dataset: iris_exams.csv  (click to download).Provide at least the following in the report for full credit: (1) Understanding the Data:

The structure of the data and a preview of the data.
Frequency Distribution. (Frequency Tables & Plots for each variable in the dataset (Barplots/Histograms)). Make sure to capture the skewness and kurtosis. – Provide an interpretation in one paragraph  (no more than 300 words) explaining the distribution of the data. 
Summary Statistics of the Data at least including mean, quartiles, min/max, and standard deviation. 

Question 2

Using the mtcars dataset, demonstrate the skills you have learned so far in class and submit a Rmarkdown (word doc) report including the following:

Develop a hypothesis

What is your hypothesis?
What columns are IVs
What columns are DVs
What columns are ignoble (why)

Check for Errors & Missing Data
Clean the data

How did you deal with NAs
How did you deal with outliers

Check Assumptions using Parametric Tests

Additivity 
Linearity
Normality
Homogeneity, Homoscedasticity

Question 3

Create a bar graph using the attached Iris dataset: iris_exams.csv  (click to download). Compare the Sepal Length of the flower Species. Include the following:

Main Title
X and Y-Axis Labels
 Colors by Species 
Provide an interpretation in one paragraph  (no more than 300 words) explaining the distribution of the data. 

Which Species Sepal.Length is greater?

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