Ch. 1 Quiz Practice Lessons 1.1 & 1.2

Instrukcije

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Obavezno

1

What is the level of Lake LBJ (Wirtz) rounded to three decimal places?

Obavezno

1

What is the level of Lake Travis (Mansfield) rounded to three decimal places?

Obavezno

1

How much more water was in Lake LBJ than in Lake Travis? Round to three decimal places.

Obavezno

1

Which lake had the highest lake level in July 2015?

Lake Buchanan

Lake Travis

Lake Austin

Lake Marble Falls

The table to the right shows data collected from several Austin cyclists after they completed a biking trip.

Use the table to answer Questions 5-10.

Obavezno

1

How many individuals in the dataset were students who cycled daily?

Obavezno

1

How many individuals in the dataset cycled for longer than 25 minutes?

Obavezno

1

What units are used to measure the variable Distance?

Obavezno

1

How far did the cyclist who bikes several times per month travel during their trip?

Obavezno

1

What was the speed of the cyclist who was a 28-year-old student?
Round to 3 decimal places.
(Speed can be found by dividing distance by time.)

Obavezno

1

Suppose a researcher wanted to determine if a relationship exists between the distance traveled and how long the trip lasted.
Which are the variables of interest in this study? Select all the correct answers.

Age

Distance

Time

Speed

Obavezno

1

Which of the following variables fall on the nominal scale?

A student’s letter grade earned for a course.

The number of siblings a student has.

A five-digit employee ID.

A student’s average GPA on a 4-point scale.

Obavezno

1

Which of the following variables fall on the ordinal scale?

A student’s letter grade earned for a course.

The number of siblings a student has.

A student’s average GPA on a 4-point scale.

A five-digit employee ID.

Obavezno

1

Which of the following variables fall on the continuous scale?

The total number of stop signs in a small town.

The distance first year college students can kick a field goal.

The number of pages in a college Statistics textbook.

A high school student’s grade classification. (Freshman, Sophomore, etc.)

Obavezno

1

Which of the following variables fall on the discrete scale?

The distance first year students can kick a field goal.

The length of time required for a wound to heal.

The hair color of children auditioning for a musical.

The number of questions answered correctly on a standardized test.

Obavezno

1

Match the following examples to the type of variable represented.

Stavka koja se može prevući		Odgovarajuća stavka
A course evaluation scale: poor, okay, good.		Categorical, Nominal
The number of players on a sports team.		Numerical, Continuous
A college student’s major.		Numerical, Discrete
The time it takes to complete an exam.		Categorical, Ordinal

The table to the right represents data collected on a few candidates for a teaching award.

Use the table to answer Questions 6-10.

Obavezno

1

The Virtual Learning variable falls on which scale?

Nominal

Continuous

Discrete

Ordinal

Obavezno

1

The Highest Degree Earned variable falls on which scale?

Continuous

Ordinal

Nominal

Discrete

Obavezno

1

What can be said about the variables Highest Degree Earned and Subject Taught?

They are both categorical variables, but the scales of measurement are different.

One is a categorical variable, and one is a numerical variable.

Only one variable is a numerical measurement on a continuous scale.

Neither of these variables can be validated using factual evidence.

Obavezno

1

What can be said about the variables Teaching Aptitude Score and Virtual Learning?

They are both categorical variables on the ordinal scale.

They are both numerical variables, but the scales of measurement are different.

Neither of these variables can be validated using factual evidence.

One is a categorical variable, and one is a quantitative variable.

Obavezno

1

Suppose a researcher wanted to determine if a relationship existed between a teacher’s salary and the highest degree they’ve earned. In order to conduct her test, she needs to use two categorical variables.
What should she do before she begins?

She should convert the Highest Degree Earned variable into two categories, with 0 representing no postgraduate degree and 1 representing a postgraduate degree.

She should convert both the Highest Degree Earned and Annual Salary variables into categorical variables.

Nothing, both variables are already categorical.

She should convert the Annual Salary variable into low, average, and high categories.

Ch. 1 Quiz Practice Lessons 1.1 & 1.2

What is the level of Lake LBJ (Wirtz) rounded to three decimal places?

What is the level of Lake Travis (Mansfield) rounded to three decimal places?

How much more water was in Lake LBJ than in Lake Travis? Round to three decimal places.

Which lake had the highest lake level in July 2015?

How many individuals in the dataset were students who cycled daily?

How many individuals in the dataset cycled for longer than 25 minutes?

What units are used to measure the variable Distance?

How far did the cyclist who bikes several times per month travel during their trip?

What was the speed of the cyclist who was a 28-year-old student? Round to 3 decimal places. (Speed can be found by dividing distance by time.)

Suppose a researcher wanted to determine if a relationship exists between the distance traveled and how long the trip lasted. Which are the variables of interest in this study? Select all the correct answers.

Which of the following variables fall on the nominal scale?

Which of the following variables fall on the ordinal scale?

Which of the following variables fall on the continuous scale?

Which of the following variables fall on the discrete scale?

Match the following examples to the type of variable represented.

The Virtual Learning variable falls on which scale?

The Highest Degree Earned variable falls on which scale?

What can be said about the variables Highest Degree Earned and Subject Taught?

What can be said about the variables Teaching Aptitude Score and Virtual Learning?

Suppose a researcher wanted to determine if a relationship existed between a teacher’s salary and the highest degree they’ve earned. In order to conduct her test, she needs to use two categorical variables. What should she do before she begins?

What is the level of Lake LBJ (Wirtz) rounded to three decimal places?

What is the level of Lake Travis (Mansfield) rounded to three decimal places?

How much more water was in Lake LBJ than in Lake Travis? Round to three decimal places.

Which lake had the highest lake level in July 2015?

How many individuals in the dataset were students who cycled daily?

How many individuals in the dataset cycled for longer than 25 minutes?

What units are used to measure the variable Distance?

How far did the cyclist who bikes several times per month travel during their trip?

What was the speed of the cyclist who was a 28-year-old student? Round to 3 decimal places. (Speed can be found by dividing distance by time.)

Suppose a researcher wanted to determine if a relationship exists between the distance traveled and how long the trip lasted. Which are the variables of interest in this study? Select all the correct answers.

Which of the following variables fall on the nominal scale?

Which of the following variables fall on the ordinal scale?

Which of the following variables fall on the continuous scale?

Which of the following variables fall on the discrete scale?

Match the following examples to the type of variable represented.

The Virtual Learning variable falls on which scale?

The Highest Degree Earned variable falls on which scale?

What can be said about the variables Highest Degree Earned and Subject Taught?

What can be said about the variables Teaching Aptitude Score and Virtual Learning?

Suppose a researcher wanted to determine if a relationship existed between a teacher’s salary and the highest degree they’ve earned. In order to conduct her test, she needs to use two categorical variables. What should she do before she begins?

What was the speed of the cyclist who was a 28-year-old student?
Round to 3 decimal places.
(Speed can be found by dividing distance by time.)

Suppose a researcher wanted to determine if a relationship exists between the distance traveled and how long the trip lasted.
Which are the variables of interest in this study? Select all the correct answers.

Suppose a researcher wanted to determine if a relationship existed between a teacher’s salary and the highest degree they’ve earned. In order to conduct her test, she needs to use two categorical variables.
What should she do before she begins?

What was the speed of the cyclist who was a 28-year-old student?
Round to 3 decimal places.
(Speed can be found by dividing distance by time.)

Suppose a researcher wanted to determine if a relationship exists between the distance traveled and how long the trip lasted.
Which are the variables of interest in this study? Select all the correct answers.

Suppose a researcher wanted to determine if a relationship existed between a teacher’s salary and the highest degree they’ve earned. In order to conduct her test, she needs to use two categorical variables.
What should she do before she begins?