R question
I'm working on a r question and need an explanation and answer to help me learn.
#INSTRUCTIONS
#Type the codes for each question
#Include answers to ALL questions in the script as a comment (with a #).
#Questions with a * next to it will ALSO require you to input the answer in Canvas.
#Lastly, upload this R script AND input the corresponding answers to Canvas.
#If you are missing codes or answers in this script, points will be deducted.
#Download and call each package from library
install.packages("openintro")
install.packages("dplyr")
install.packages("ggplot2")
library(openintro)
library(dplyr)
library(ggplot2)
#Run data and view the name of variables
data(acs12)
names(acs12)
#The data is named "acs12"
View(acs12)
###CONFIDENCE INTERVALS
###EXAMPLE, solve the problems using this guideline###
#1. Construct a 95% CI for the average commute time for Americans (the variable we're looking at is caled "time_to_work")
#What is the interval for the average commute time? What does this mean?
#The average commute time is 24.4, 27.6 minutes. This means that we can be 95% confident that the average commute time is between these values.
t.test(acs12$time_to_work)
#*2. Construct a 95% CI for the average income and explain your results. The variable is called "income"
#*3. Construct a 95% CI for the average hours worked and explain your results. This variable is called "hrs_work"
#*4. Construct a 95% CI for the average age and explain your results. This variable is called "age"
### T-Tests HYPOTHESIS TESTS
###REMEMBER we REJECT the Ho if the p-value is LESS than alpha of 0.05
###EXAMPLE BELOW, solve the problems using this question
#5. Assume the average commute time of Americans is thought to be 26 min.
#Write the null hypothesis and the conclusion
#***This is a two-sided test, meaning we are not looking at greater or less than
#Ho: average commute = 26
#Ha: average commute NOT equal to 26
t.test(acs12$time_to_work, mu=26, alternative = "two.sided")
#The p-value is 1 which is GREATER than alpha of 0.05. Therefore we FAIL TO REJECT the HO. The average commute is equal to 26
# *6. Assume that the average age is thought to be GREATER than 30.
#Write the null hypothesis and the conclusion
#*** This is a one-sided test, we are looking at GREATER than 30 as the alternative
#Ho:
#Ha:
# P-value and conclusion:
# *7. Assume that the average age is thought to be LESS than 50.
#Write the null hypothesis and the conclusion
#*** This is a one-sided test, we are looking at LESS than 50 as the alternative
#Ho:
#Ha:
# P-value and conclusion:
# *8. Assume that the average age is thought to be EQUAL TO 30.
#Write the null hypothesis and the conclusion
#*** This is a two-sided test, we are looking at "two.sided" as the alternative
#Ho:
#Ha:
# P-value and conclusion:
Collepals.com Plagiarism Free Papers
Are you looking for custom essay writing service or even dissertation writing services? Just request for our write my paper service, and we'll match you with the best essay writer in your subject! With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.
Get ZERO PLAGIARISM, HUMAN WRITTEN ESSAYS
Why Hire Collepals.com writers to do your paper?
Quality- We are experienced and have access to ample research materials.
We write plagiarism Free Content
Confidential- We never share or sell your personal information to third parties.
Support-Chat with us today! We are always waiting to answer all your questions.