Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. in the r programming language, we would like to us

In the R programming language, we would like to use the data set called iris to...

60.1K

Verified Solution

Question

Statistics

  1. In the R programming language, we would like to use the dataset called iris to build a simple linear regression model topredict

Sepal.Length based onPetal.Length.

  1. Calculate the least squares regression line to predictSepal.Length based on Petal.Length. Interpret the slope of the linein the context of the problem. Remember that both variables aremeasured in centimeters.
  2. Plot the regression line in a scatterplot of Sepal.Length vs.Petal.Length.
  3. Test H1: ??1 ≠ 0 at ?? = 0.05 using both a??-test and an ??-test. Report the test statistics and interpretthe results.
  4. Visually check the normality assumption. Does it seemreasonable here?
  5. Visually check the constant variance assumption. Does it seemreasonable here?
  6. Interpret this regression model’s ??2.
  7. Using the regression line, what would you predict as theSepal.Length for an iris with a Petal.Length of 3.4 cm?
  8. We would expect approximately 95% of the irises to have aSepal.Length within ± (fill in the blank)  cm of theirpredicted values from the regression line.

Answers should be in the form of R code on how to accomplisheach part and include the correct statistical explanation for thosethat require it in the question. Please be as thorough as possible.Thank you so much!!!

Answer & Explanation Solved by verified expert
4.0 Ratings (552 Votes)
aThe linear regression equation isY43066040892X    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Advance Math
1.2K views

use the annihilator method to show y"+3y'-4y=8x+5ex, y(0)=1, y'(0)=2

Physics
1.2K views

26 Four cells each of emf E and internal r are connected in series If...

Physics
1.2K views

The centre of mass of system of particles does not depend on 1997 position of...

Basic Math
1.2K views

2 Use induction to prove for any natural number n that 1 3 32 3...

Accounting
1.2K views

Given below is a portion of Vaughn, Inc's management performance report: Budget Actual Difference Contribution...

Accounting
1.2K views

The following budgeted information is available: ...

Accounting
1.2K views

5. Discuss in brief the global principles of Management Accounting.

Accounting
1.2K views

Nov. 1 - Inventory of 20 units at $19 per unitNov. 4- Sold 10 units...

Accounting
1.2K views

explain the function of replaceable rules , and whether companies should be able to replace...

Accounting
1.2K views

On June 1, Year 13, the Barnes Corp. factored $100,000 of its accounts receivable without...

Accounting
1.2K views

Chapter 10 Problems Saved Help Save & Exit Submit Check my work 4 Marvel Parts,...

Accounting
1.2K views

Wendeli's Donut Shoppe is investigating the purchase of a new $42,700 donut-making machine. The new...