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Exam 1: What Is Statistics

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Question 31

Multiple Choice

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PlayTime Toys Inc. employs 50 people in the Assembly Department. Forty of the employees belong to a union and 10 do not. Five employees are selected at random to form a committee to meet with management regarding shift starting times. Would the 5 selected employees be considered a population or a sample?

A) population
B) sample

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Question 32

Multiple Choice

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The members of each basketball team wear numbers on the back of their jerseys. What scale of measurement are these numbers considered?

A) Nominal
B) Ordinal
C) Interval
D) Ratio

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Question 33

Multiple Choice

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The branch of statistics from which we draw conclusions from sample data is called _________________ statistics.

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high) , annual income, and age. Label the variable annual income as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high) , annual income, and age. Label the variable gender as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

When TV advertisements report that "2 out of 3 dentists surveyed indicated they would recommend Brand X toothpaste to their patients," an informed consumer may question the conclusion because:

If unemployment is 5.5% of the population, what is this level of measurement?

Ranked data is an example of a(n) _______________ level of measurement.

The Shell station on Portage Ave in Winnipeg is studying the number of litres of fuel that are sold on each day of the week. Records are available for the past year. How can the variable 'number of litres' be best described?

What type of data is the number of robberies reported in your city?

A questionnaire contained a question regarding marital status. The respondent checked single, married, divorced, separated or widowed. What is the scale of measurement for this question?

Which of the following is an example of continuous data?

The "lowest" level of measurement is _____________.

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high) , annual income, and age. Which two of the variables are considered to be quantitative rather than qualitative?

What type of data is the number of litres of gasoline pumped by a filling station during a day?

Colleen Waite, Director of General Canadian Sales, is concerned by a downward sales trend. Specifically, their customer base is stable at 2,200, but they are purchasing less each year. She orders her staff to search for causes of the downward trend by selecting a focus group of 50 customers.

What level of measurement is the price of an admission ticket to a movie theater?

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high) , annual income, and age. Which two variables are considered to be continuous rather than discrete?

The "highest" level of measurement is ________________.

Which one of the following statistics is NOT an example of discrete data?