[Top Answer] MATH225N – Week 1 Assignment Variables and Measures of Data

Description

Week 1 – Introduction to Statistics

 

Week	Assignments	Due Date
Week 1	Introduction Forum (Not graded by required)	Suggested Due Date: Wednesday of Week 1
	Graded Discussion	Suggested Due Date— Initial Post:  Wednesday of Week 1   Due Date— Responses:  Sunday of Week 1 [Have two posts on two different days]
	Knewton Homework Assignments Evidence, Claims and Study Types (Section 1.4) Variable and Measures of Data (Section 1.3) Sampling Methods (Section 1.2) Comparing Sampling Methods (Section 1.2)	Sunday of Week 1

 

Week 1 Assignment – Variables and Measures of Data

Objectives

1.3 Variables and Measures of Data

Completed

• Identify explanatory and response variables in an experiment
• Define and distinguish between qualitative, quantitative, discrete, and continuous variables
• Identify levels of measurement of data

Activity 1

Question

A political researcher asks people if they Strongly Disagree, Disagree, Agree, or Strongly Agree with various policy decisions. What is the level of measurement of the data?

Select the correct answer below:

• nominal
• ordinal
• interval
• ratio

Answer

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Activity 2

Question

A zoologist measures the birthweight of each cub in a litter of lions. What is the level of measurement of the data?

Select the correct answer below:

• nominal
• ordinal
• interval
• Ratio

Answer

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Activity 3

Question

What term best describes data that is an attribute whose value is indicated by a label?

• discrete
• quantitative
• statistic
• qualitative

Answer

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Activity 4

Question

Given that Justin is collecting data on reaction time, what type of data is he working with?

• qualitative data
• discrete quantitative data
• continuous quantitative data
• none of the above

Answer

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Activity 5

Question

Which of the following best describes the term explanatory variable?

Select the correct answer below:

• the dependent variable in an experiment
• a value or component of the independent variable applied in an experiment
• a variable that has an effect on a study even though it is neither an independent nor a dependent variable
• the independent variable in an experiment

Answer

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Activity 6

Question

Angela is collecting data on the number of classes that students take. What type of data is this?

• qualitative data
• discrete quantitative data
• continuous quantitative data
• none of the above

Answer

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Activity 7

Question

Jacqueline is investigating if age has any effect on the number of hours of sleep. Which of the following gives the explanatory and response variables respectively?

Select the correct answer below:

• the number of people that are being studied and the number of hours of sleep
• the number of hours of sleep and age
• age and the number of hours of sleep
• the number of people that are being studied and age

Answer

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Activity 8

Question

Given that Angelina is collecting data on commute distance, what type of data is she working with?

Select the correct answer below:

• qualitative data
• discrete quantitative data
• continuous quantitative data
• none of the above

Answer

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Activity 9

Question

Patrick is collecting data on shoe size. What type of data is this?

Select the correct answer below:

• qualitative data
• discrete quantitative data
• continuous quantitative data
• none of the above

Answer

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Activity 10

Question

To determine whether or not grade level influences time spent studying, Samuel has designed a survey. What is the response variable?

Select the correct answer below:

• grade level
• time spent studying
• the number of people surveyed
• none of the above

Answer

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Activity 11

Question

A biologist samples and measures the length of the fish in a lake. What is the level of measurement of the data?

Select the correct answer below:

• nominal
• ordinal
• interval
• ratio

Answer

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Activity 12

Question

A market researcher finds the price of several brands of fabric softener. What is the level of measurement of the data?

Select the correct answer below:

• nominal
• ordinal
• interval
• ratio

Answer

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Activity 13

Question

Is the statement below true or false?

Continuous data is the type of quantitative data that is the result of counting.

Select the correct answer below:

• True
• False

Answer

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Activity 14

Question

Jason is collecting data on the number of books students read each year. What type of data is this?

Select the correct answer below:

• qualitative data
• discrete quantitative data
• continuous quantitative data
• none of the above

Answer

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Activity 15

Question

To determine whether or not number of siblings influences grade point average, Charles has designed a survey. What is the explanatory variable?

Select the correct answer below:

• number of siblings
• grade point average
• the number of people surveyed
• none of the above

Answer

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Activity 16

Question

Which of the following best describes the term response variable?

Select the correct answer below:

• the independent variable in an experiment
• a variable that has an effect on a study even though it is neither an independent nor a dependent variable
• the dependent variable in an experiment
• a value or component of the independent variable applied in an experiment

Answer

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Activity 17

Question

True or False?

An explanatory variable is a value or component of the independent variable applied in an experiment (This is a treatment)

Select the correct answer below:

• True
• False

Answer

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Activity 18

Question

Margaret is investigating if gender has any effect on political party associations. What is the response variable?

Select the correct answer below:

• political party associations
• gender
• the number of people that are being studied
• none of the above

Answer

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Activity 19

Question

A new mother keeps track of the time when her baby wakes up each morning. What is the level of measurement of the data?

Select the correct answer below:

• nominal
• ordinal
• interval
• ratio

Answer

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Activity 20

Question

A track runner keeps track of how long it takes her to run the 200-meter dash. What is the level of measurement of the data?

Select the correct answer below:

• nominal
• ordinal
• interval
• ratio

Answer

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