Assignment 1

Part II Question

Please use the functions and approaches we practiced in class. If you choose a different method, you must clearly explain your steps in your own words, or full credit may not be given. Please complete this assignment without AI assistance.

The Taiwan Social Change Survey (TSCS) is a nationwide survey that has been conducted every year since 1985. The TSCS conducts face-to-face interviews with a nationally representative sample of adults in Taiwan. The tscs162s.csv file is a subset of the TSCS survey conducted in 2016 (https://www2.ios.sinica.edu.tw/sc/en/scDownload3a.php). Table below displays the names and descriptions of variables in the tscs162s.csv data file. (25 points)

Variables	Description
id	Respondent’s ID
sex	Respondent’s Sex
birthyr	Birth Year
eduyear	Years of Education
hincome	Household Monthly Income
internew	Paid How Much Attention to International Issues
intpol	How Interested in Politics

1. Please import tscs162s.csv into R and obtain a summary of the data. Remember to copy and paste the data import line from the Console panel below so that R Markdown can read the dataset. (15 points)

tscs162s <- read.csv("C:/Users/DELL/Desktop/tscs162s.csv")
summary(tscs162s)

##        id              sex           birthyr        internew    
##  Min.   :103101   Min.   :1.000   Min.   :1918   Min.   :1.000  
##  1st Qu.:244126   1st Qu.:1.000   1st Qu.:1956   1st Qu.:1.000  
##  Median :406202   Median :1.000   Median :1970   Median :2.000  
##  Mean   :460977   Mean   :1.475   Mean   :1969   Mean   :2.141  
##  3rd Qu.:710102   3rd Qu.:2.000   3rd Qu.:1984   3rd Qu.:3.000  
##  Max.   :973123   Max.   :2.000   Max.   :1997   Max.   :4.000  
##                                   NAs    :9      NAs    :1      
##     hincome         eduyear          intpol     
##  Min.   : 1.00   Min.   : 1.00   Min.   :1.000  
##  1st Qu.: 5.00   1st Qu.: 9.00   1st Qu.:3.000  
##  Median : 8.00   Median :13.00   Median :4.000  
##  Mean   : 9.37   Mean   :12.66   Mean   :3.991  
##  3rd Qu.:12.00   3rd Qu.:16.00   3rd Qu.:5.000  
##  Max.   :26.00   Max.   :31.00   Max.   :5.000  
##  NAs    :477     NAs    :81      NAs    :11

2. How many observations are there in the dataset? (Please use the code introduced in class to find N.) (5 points)

nrow(tscs162s)

## [1] 1966

3. Based on the summary output, what are the earliest and latest birth years (birthyr) represented in the dataset? (5 points)

Answer: earliest birth year is 1918, latest birth year is 1997