Welcome to Our First Lab for MATH 221!
These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel,
that is great! If not, don't worry, we'll show you everything you need to know to successfully w
Math 221
Week 2 Lab
Submitted by:
Professor: Brent Heard
Part 1. Random Sampling
To audit all the files it might take a lot of time imaging that there could be a lot of
data, sampling will give good enough results to issue an audit opinion. Random
Sampli
Week 7 Quiz Help
Things to remember for this weeks quiz. Theres some good info here, pay close
attention.
With the standard normal distribution
Remember that the total area under the curve is equal to 1 or 100% (half on each side).
The mean of the standar
Random Sampling in Excel
By Bob Rossi, DeVry Online
Introduction
Several functions in Excel will allow you to create random samples. The standard functions that
can be used are RAND or RANDBETWEEN. This Demonstration will show how to use the Data
Analysis
Week 1: Chapter 1
Collecting, Organizing and
Presenting Data
What Is Statistics?
Statistics helps us make decisions
without prejudice - data is
objective
Statistics is a process involving the
collection, organization, analysis
and interpretation of data t
Chapter 2
Descriptive
Statistics
2.1
Frequency
Distributions
and Their
Graphs
Frequency Distributions
A frequency distribution is a table that shows
classes or intervals of data with a count of the
number in each class. The frequency f of a class is
the