Business Statistics, Cdn. Ed., 4e (Sharpe)
Chapter 2: Data
Short Answer - Quiz A
1) The mission of a research firm is to "explore the impact of the Internet on families, communities, work, home, and daily life." In August - September 2015 they conducted telephone interviews with a sample of Canadian adults aged 18 and older about online shopping. Describe the W's for the information given.
• Who:
• What:
• When:
• Where:
• How:
• Why:
Answer:
• Who: Canadian adults aged 18 and older
• What: online shopping
• When: August - September 2015
• Where: Canada
• How: telephone interviews
• Why: to explore the impact of the Internet on daily life, specifically online shopping
L.O.: 1
2) The following table displays some of the data collected by the above research firm in their study of online shopping. List the variables in the data set. Indicate whether each variable is categorical or quantitative. If the variable is quantitative, give the units.
Answer: Categorical: Gender, Participated in online auction?
Quantitative: Age (years), Household Income ($), Monthly amount spent online ($), Time per week browsing online retailers (hours).
L.O.: 2
3) In addition to the variables listed above, data were also collected on the variables listed below. Indicate whether each is nominal or ordinal.
• Region (Urban, Suburban, Rural)
• Education (Less than High School, High School, College, University)
• Marital Status (Single, Widowed, Divorced, Married)
Answer:
• Region (Urban, Suburban, Rural)
Nominal
• Education (Less than High School, High School, College, University)
Ordinal
• Marital Status (Single, Widowed, Divorced, Married)
Nominal
L.O.: 2
4) For each of the following, indicate whether the data are cross-sectional or time series:
• Weekly receipts at a clothing boutique
• Monthly demand for an automotive part
• Percentage of adults who bank online
Answer:
• Weekly receipts at a clothing boutique
Time Series
• Monthly demand for an automotive part
Time Series
• Percentage of adults who bank online
Cross-Sectional
L.O.: 2
5) Eastland College instructors and students are asking to review a new computer tutorial. Peter, author of the tutorial, wants to analyze the feedback. He gets a spreadsheet. List the variables in the data set. Indicate whether each variable is categorical or quantitative. If the variable is categorical, indicate whether it is nominal or ordinal. Does the table contain an identifier variable?
Chapter 2: Data
Short Answer - Quiz A
1) The mission of a research firm is to "explore the impact of the Internet on families, communities, work, home, and daily life." In August - September 2015 they conducted telephone interviews with a sample of Canadian adults aged 18 and older about online shopping. Describe the W's for the information given.
• Who:
• What:
• When:
• Where:
• How:
• Why:
Answer:
• Who: Canadian adults aged 18 and older
• What: online shopping
• When: August - September 2015
• Where: Canada
• How: telephone interviews
• Why: to explore the impact of the Internet on daily life, specifically online shopping
L.O.: 1
2) The following table displays some of the data collected by the above research firm in their study of online shopping. List the variables in the data set. Indicate whether each variable is categorical or quantitative. If the variable is quantitative, give the units.
| Age | Gender | Household Income | Participated in online auction? | Monthly amount spent online | Time (hours) per week browsing online retailers |
| 25 | Male | $55,000 | Yes | $250 | 6 |
| 47 | Female | $60,000 | No | $50 | 4 |
| 38 | Female | $110,000 | No | $120 | 10 |
| 30 | Male | $62,000 | No | $75 | 4 |
Answer: Categorical: Gender, Participated in online auction?
Quantitative: Age (years), Household Income ($), Monthly amount spent online ($), Time per week browsing online retailers (hours).
L.O.: 2
3) In addition to the variables listed above, data were also collected on the variables listed below. Indicate whether each is nominal or ordinal.
• Region (Urban, Suburban, Rural)
• Education (Less than High School, High School, College, University)
• Marital Status (Single, Widowed, Divorced, Married)
Answer:
• Region (Urban, Suburban, Rural)
Nominal
• Education (Less than High School, High School, College, University)
Ordinal
• Marital Status (Single, Widowed, Divorced, Married)
Nominal
L.O.: 2
4) For each of the following, indicate whether the data are cross-sectional or time series:
• Weekly receipts at a clothing boutique
• Monthly demand for an automotive part
• Percentage of adults who bank online
Answer:
• Weekly receipts at a clothing boutique
Time Series
• Monthly demand for an automotive part
Time Series
• Percentage of adults who bank online
Cross-Sectional
L.O.: 2
5) Eastland College instructors and students are asking to review a new computer tutorial. Peter, author of the tutorial, wants to analyze the feedback. He gets a spreadsheet. List the variables in the data set. Indicate whether each variable is categorical or quantitative. If the variable is categorical, indicate whether it is nominal or ordinal. Does the table contain an identifier variable?