讲解Data Communication、辅导CS/Python程序、讲解Java/C++设计、讲解PEW

Group Assignment 1 Data Communication

Internet: Utopia or Dystopia?

A number of scholars have pointed to the Internet for its deleterious effects on

human well-being, given that it can exacerbate loneliness, depression and social

isolation. In contrast, others believe that the Internet can enhance the quality of life

by precipitating the emergence of a new type of social aggregation. Using the data

collected by the PEW research center (dataset: “pew.csv”), perform a chi-square test

to see if Internet use (intuse: 1 Yes; 2 No; 8 Don’t know; 9 Refused) upgrades or

downgrades the quality of life (q1: 1 Excellent; 2 Very good; 3 Good; 4 Fair; 5 Poor; 8

Don’t know; 9 Refused). Do the data support the utopian or dystopian view about

the Internet

2

Gender and Racial Bias in Perceptions of Others’ Pain

A group of researchers at the University of Virginia investigated whether people

estimate a different level of pain when the race (i.e., White, Black, Hispanic, or

Asian) and gender (i.e., Female or Male) of a victim are varied. To test this idea, the

researchers ran a randomized experiment (dataset: “tess.csv”). In this experiment,

participants were first asked to report the amount of pain they would feel when

they stub their toe on a chair leg (Q4: 0 Not painful to 10 Extremely painful; -1

Refused). They were then randomly assigned to see only one of the following 24

photos (XTESS089). That is, each participant saw a photo of a Black, Hispanic, Asian,

or White target person of either gender. Following the treatment, participants were

asked to estimate the amount of pain the target person would feel in the same

situation above (Q8: 0 Not painful to 10 Extremely painful; -1 Refused).

3

White Black Hispanic Asian

1 2 3 4

5 6 7 8

9 10 11 12

13 14 15 16

17 18 19 20

21 22 23 24

Note: The number above each picture indicates the numerical value assigned in the

XTESS089 variable for the experimental treatment.

4

a. Test whether or not the collected sample is skewed in terms of participants’

political ideology (XIDEO: 1 Extremely liberal; 2 Liberal; 3 Slightly liberal; 4

Moderate, middle of the road; 5 Slightly conservative; 6 Conservative; 7 Extremely

conservative; -1 Refused).

b. Test whether people’s self-reported pain differs from their estimation of others’

pain.

c. Test whether people estimate others’ pain differently depending on the gender of

a victim.

d. Test whether people estimate others’ pain differently depending on the race of a

victim.

e. Test whether there is any interaction effect between the race and gender of a

victim on people’s estimation of the pain the victim would feel.