OFFICIAL QUESTIONS – NOVEMBER 16, 2000



InfoZoom Training Questions

You are now being asked to answer a few questions on the dating data using the InfoZoom visualization system. For most tasks you will receive instructions on how to solve them (sometimes two alternatives are presented). Please follow these instructions carefully, but also use this practice session to try out the system, and to explore and better understand it.

You will have 30 minutes for these tasks. Don’t rush, they won’t take very long. Please note down your answers where indicated.

We strongly encourage you to ask questions during this time, to understand the functionality of the system better.

One final request: after answering each question, please reset the display. This is done by clicking on the "All" button.

Have fun with the training. You can turn overleaf now.

DATING DOMAIN

Abbreviations for questions:

Love 1st sight? = Do you believe in love at first sight?

Engage in sports? = Do you participate in sports?

Like to travel? = Do you like to travel?

Want kids? = Do you plan to have kid(s) in the future?

Sex important? = Do you believe sex is very important for a relationship to work?

Did you cheat? = Have you ever cheated on your boyfriend/girlfriend?

Meet in bar? = Do you think the bar is a good place to meet a mate?

Q1: Approximately what proportion of the people in the database live in California?

Steps:

i. Click on the attribute titled “State”

ii. Click on Chart Icon.

Answer: about 80%

Reset the display by clicking on the All button

Q2: Do all people who think the bar is a good place to meet a mate also believe in love at first sight?

Steps:

i. Go to Overview Mode.

ii. Double click on “Y” under Meet in Bar?.

iii. Check to see whether there is only Y for "Love 1st Sight?"

Answer: No, since this is not the case

Reset the display by clicking on the All button

Q3: Is the proportion of people who think that sex is important in a relationship larger for Protestants than for Catholics?

Steps:

i. Click on Overview Mode

ii. Click on “Y” under "Sex important?".

iii. Visually compare between Catholics or Protestants under "Religion"

iv. OR Click on Religion attribute name. Then click on “Chart” icon to see the exact number.

Reset the display by clicking on the All button

Solution 2:

Steps:

Click on Compressed Mode

Move the "Sex important?" attribute next to the Religion attribute.

Do hierarchical sorting: click the arrow in "Sex important?" first, then on the arrow in Religion (think "Sex important per religion").

Compare the ratios of Y vs. N for Catholics and for Protestants.

Answer: for Catholics

Reset the display by clicking on the All button

Q4: Find out whether there exists a girl who does not reside in California, but believes in love at first sight, likes to travel, and has never cheated on her boyfriend. Write down the screen name of one such girl if one exists.

Steps:

i. Click on Overview

ii. Find the attribute Gender and double click on value F (for female)

iii. Find the attribute State, select CA, and click on the "Exclude" icon

iv. You now see a "Wide view "of all girls who do not reside in California.

v. Look for attribute "Did you cheat?" using the scroll bar. Double click on n (for no) to zoom in.

vi. Find attribute "Love 1st sight?". Click to select y (for yes) and double click to zoom in.

vii. At this point, only 1 object (number 37) is returned. And the attribute "Like to travel?" has the value y (for yes), meeting our last criterion.

viii. Find the attribute ScreenName for this object.

Answer: hathor

Reset the display by clicking on the All button

Q5: Which group of women are more likely planning to have kids in the future, women who are 30 years and above or women who are less than 30 years?

Steps:

i. Click on Overview

ii. In the attribute Gender, double click on F (for female) to zoom in.

iii. Noting today’s date, select from attribute Birthday only the dates that would yield females under 30 years old by dragging the mouse over this spectrum. Click on Zoom In.

iv. Select the "Want kids?" attribute and click on the Chart icon to graph.

v. Note the percentage of value y (for yes)

vi. Click on All to reset the display

vii. Repeat steps i-iii above, this time selecting from attribute Birthday only the dates that would yield females 30 years and older.

viii. Compare the two percentiles and conclude that females less than 30 years of age are more likely to want kids.

Solution 2:

1. Click on Overview

2. On the attribute Gender, double click on F (for female) to zoom in.

3. On the attribute "Want kids?", double click on y (for yes).

4. Note the number of objects less than 30 years old and the number of object 30 or older and compare to arrive at the same solution.

Answer: 29 and younger

Reset the display by clicking on the All button

Q6: Did males cheat more on their girlfriends than females on their boyfriends?

( Yes ( No ( don’t see

Comment:

Reset the display by clicking on the All button

Q7: Are the people who do not participate in sports heavier than the rest?

Answer:___________________ ( don’t see

Comment:

Reset the display by clicking on the All button

Q8: Is there a relation between monthly income and monthly spending?

Steps:

i. Click on Compressed View

ii. Make sure the attributes Income/month and Spending/month are next to each other. (If they are not, simply move one row next to the other by first clicking on the attribute and then dragging it to the desired place)

iii. Increase the height of each attribute row by moving the cursor to its upper or lower edge (in the column for the attribute names). The cursor symbol changes. Click and drag the edge to the desired position.

iv. Click on the arrow to sort attribute Income/month in ascending order. That is, the arrow should be pointing to the right.

v. Now, look at the attribute Spending/month and analyze its graph. Conclude that there is direct correlation between Income/month and Spending/month since as Income/month goes up, Spending/month also goes up.

Answer: yes

Reset the display by clicking on the All button

Q9: Do people generally earn more the older they get, or is it the opposite?

( Yes ( Opposite ( Neither ( don’t see

Comment:

PLEASE TELL THE EXPERIMENTORS THAT YOU ARE FINISHED.

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