Zach Steedman

Colorado College

Biography

Zach has not yet added a biography.

Education

BA Mathematics
Colorado College
MA Teaching: Secondary Mathematics
University of Denver

Educator Statistics

Numerade tutor for 7 years
2177 Students Helped

Topics Covered

Mastering Equations and Inequalities: Your Guide to Mathematical Success
Introduction to Sequences and Series
Functions
Mastering Polynomials: Essential Tips and Tricks | [Brand Name]
Maximizing Accuracy with Effective Sampling and Data Analysis
Unlocking Insights with Descriptive Statistics: A Comprehensive Guide
Discover the Best Series to Binge-Watch | Your Ultimate Guide
Mastering Sequences and Series: An Introduction
The Power of Algebraic Language: Unlocking Mathematical Potential
Understanding Complex Numbers: A Comprehensive Guide
Unlocking the Power of Functions: Boost Your Programming Skills
Mastering Partial Derivatives: Essential Techniques and Tips
Master Algebra Basics: Topics Reviewed at Semester Start
Explore the Power of Continuous Functions: Boost Your Mathematical Skills
Exploring the Functions of Multiple Variables
Mastering Fractions and Mixed Numbers: A Comprehensive Guide
Unlock Insights with Data-Driven Graphs & Statistics
Mastering Linear Functions: A Comprehensive Guide
Rational Functions: Understanding Their Properties and Applications
Mastering Exponential and Logarithmic Functions: Your Ultimate Guide
Linear Regression & Correlation: Analyzing Data Relationships
Understanding the Normal Distribution: A Comprehensive Guide
Introduction to Combinatorics & Probability: Understanding the Basics
Introduction to Conic Sections
Discover the Wonders of Geometry: An Introduction to Shapes and Space
Solving Systems of Equations and Inequalities: A Comprehensive Guide
Discover the Power of Right Triangles in Geometry
Find the Whole Range of Numbers - Input and Output
Mastering Quadratic Functions: Unlocking Their Power
The Long-Term Impact of the Real Economy: Insights and Analysis
Mastering Exponents and Polynomials: A Comprehensive Guide

Zach's Textbook Answer Videos

01:43
Essentials of Modern Business Statistics

Walt Disney Company bought Pixar Animation Studios, Inc. in a deal worth $\$ 7.4$ billion
$($CNN Money website, January $24,2006) .$ The animated movies produced by Disney and
Pixar during the previous 10 years are listed in the following table. The box office revenues are in millions of dollars. Compute the total revenue, the mean, the median, and the quartiles to compare the box office success of the movies produced by both companies. Do the statistics suggest at least one of the reasons Disney was interested in buying Pixar?
Discuss.

Chapter 3: Descriptive Statistics: Numerical Measures
Zach Steedman
02:24
Essentials of Modern Business Statistics

Consider a sample with data values of $10,20,12,17,$ and $16 .$ Compute the variance and
standard deviation.

Chapter 3: Descriptive Statistics: Numerical Measures
Zach Steedman
04:09
Essentials of Modern Business Statistics

A bowler's scores for six games were $182,168,188,190,170,170,$ and $174 .$ Using these data
as a sample, compute the following descriptive statistics:
a. Range
b. Variance
c. Standard deviation
d. Coefficient of variation

Chapter 3: Descriptive Statistics: Numerical Measures
Zach Steedman
02:12
Essentials of Modern Business Statistics

Car rental rates per day for a sampleof seven Eastern U.S. cities are as follows (The Wall Street
Journal, January $16,2004 ) .$
$$\begin{array}{ll}{\text { City }} & {\text { Daily Rate }} \\ {\text { Boston }} & {\$ 43} \\ {\text { Atlanta }} & {\$ 5} \\ {\text { Miami }} & {34} \\ {\text { New York }} & {58} \\ {\text { Orlando }} & {30} \\ {\text { Pittsburgh }} & {30} \\ {\text { Washington, D.C. }} & {36}\end{array}$$
a. Compute the mean, variance, and standard deviation for the car rental rates.
b. A similar sample of seven Western U.S. cities showed a sample mean car rental rate of S38 per day. The variance and standard deviation were 12.3 and $3.5,$ respectively. Discuss
any difference between the car rental rates in Eastern and Western U.S. cities.

Chapter 3: Descriptive Statistics: Numerical Measures
Zach Steedman
01:44
Essentials of Modern Business Statistics

The following data were used to construct the histograms of the number of days required
to fill orders for Dawson Supply, Inc., and J.C. Clark Distributors (see Figure 3.4).
Dawson Supply Days for Delivery: 11$\quad 10 \quad 9 \quad 10 \quad 11 \quad 11 \quad 10 \quad 11 \quad 10 \quad 10$
Clark Distributors Days for Delivery: 8$\quad 10 \quad 13 \quad 7 \quad 10 \quad 11 \quad 10 \quad 7 \quad 15 \quad 12$
Use the range and standard deviation to support the previous observation that Dawson
Supply provides the more consistent and reliable delivery times.

Chapter 3: Descriptive Statistics: Numerical Measures
Zach Steedman
03:32
Essentials of Modern Business Statistics

The following times were recorded by the quarter-mile and mile runners of a university
track team (times are in minutes).
After viewing this sample of running times, one of the coaches commented that the quarter-
milers turned in the more consistent times. Use the standard deviation and the coefficient
of variation to summarize the variability in the data. Does the use of the coefficient of variation indicate that the coach's statement should be qualified?

Chapter 3: Descriptive Statistics: Numerical Measures
Zach Steedman
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