Use the Iris Dataset which can be loaded into the Rstudio environmentiris_exams.csv(click to download).

• Answer the following questions in the report for full credit:
• Linear Regression Analysis - Start with the clean data set from Question 1 (i.e. the data set after data screening)

1. Run a Regression Model with All Variables. Set the dependent variable to 'Species'.
2. Run a Regression Model with only significant Independent Variables. Set the dependent variables to 'Species'.
3. Capture the final model summary.
4. Explain the following statistics/terms from the output table:

• Estimate
• T-Value
• Pr(>|t|)
• R-squared
• F-statistic

1. Show how to calculate the DF for F-statistic
2. Provide an interpretation of the results. Support your response with results captured from the linear regression analysis.