Question 1

Which of the following is not a categorical variable?

Accepted Answer

A) your age on your last birthday 
B) your cell phone area code 
C) your accounting class start time 
D) your high school graduation year 
A) your age on your last birthday 
B) your cell phone area code 
C) your accounting class start time 
D) your high school graduation year

Question 2

In a sample of 800 students in a university, 360, or 45%, live in the dormitories. The 45% is an example of

Accepted Answer

A) a sample 
B) a population 
C) statistical inference 
D) descriptive statistics 
A) a sample 
B) a population 
C) statistical inference 
D) descriptive statistics

Question 3

A magazine surveys a sample of its subscribers every year. Some of the responses are shown below.
   
a.How many variables are in the data set?
b.Name the scale of measurement for each variable.
c.Which of the above (Year, Percent Female, Average Age, Average Annual Household Income) are categorical and which are quantitative?
d.Are the data time series or cross-sectional?

Accepted Answer

a.4
b.Year: interval, Percent

Question 4

The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of

Accepted Answer

A) a sample 
B) descriptive statistics 
C) statistical inference 
D) an experiment 
A) a sample 
B) descriptive statistics 
C) statistical inference 
D) an experiment

Which of the following is not a categorical variable?

In a sample of 800 students in a university, 360, or 45%, live in the dormitories. The 45% is an example of

The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of

Descriptive Statistics: Tabular and Graphical Presentations

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design, and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Statistical Methods for Quality Control

Time Series Analysis and Forecastng

Filters

Exam 1: Data and Statistics

Which of the following is not a categorical variable?

In a sample of 800 students in a university, 360, or 45%, live in the dormitories. The 45% is an example of

The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of

Descriptive Statistics: Tabular and Graphical Presentations

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design, and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Statistical Methods for Quality Control

Time Series Analysis and Forecastng

Filters