MATH399 StatisticsLab Week 2
Question 1 is worth 5 points and each question after that is worth 4.5 points, for a
total of 50 points for the lab.
Name:
Statistical Concepts:
Using Excel
Graphics
Shapes of distributions
Descriptive statistics
NOTE: Dir
MATH399 Statistics
Week 4 Lab
Name: _
Statistical Concepts:
Probability
Binomial Probability Distribution
Calculating Binomial Probabilities
Open a new Excel worksheet.
1.
2.
3.
4.
5.
Open spreadsheet
In cell A1 type success as the label
Under that in
MATH 221 Statistics for Decision Making
Week 4 iLab
Name: _ _
MATH221
Statistical Concepts:
Probability
Binomial Probability Distribution
Calculating Binomial Probabilities
Open a new Excel worksheet.
1.
2.
3.
4.
5.
Open spreadsheet
In cell A1 type suc
MATH 221 Statistics for Decision Making
Week 6 iLab
Name: _
Statistical Concepts:
Data Simulation
Confidence Intervals
Normal Probabilities
Short Answer Writing Assignment
All answers should be complete sentences.
We need to find the confidence interva
Terminology and homework practice SOLUTIONS AND EXPLANATIONS
If any of these explanations or solutions don't make sense, post a Help Request in this
discussion.
Population &SamplePractice
Identifying the population and sample is a skill you will have to
Sheet 1
Basic Statistics from Raw Data
Sales Data
Measures of Central tendency
Mean
15.85
Median
16
Mode
16
Range
IQR
18
4.5
Measures of Dispersion
If the data is of a
Sample
Population
Variance 19.9236842
18.9275
St. Dev. 4.46359544 4.35057467
Skewness a
Confidence Calculator for m
Sample
Data
61
66
67
68
68
69
69
69
69
69
70
71
71
71
73
74
74
75
Always Understand which you use, z or t, for help  LOOK in t
Sample Sizes of at least 30
Z
Population Stdev. 3.307745 s
Sample Size
18
n
Sample Mean 69.66667 x
MATH 399N Statistics for Decision Making
Week 6 iLab
Name:_
Statistical Concepts:
Data Simulation
Confidence Intervals
Normal Probabilities
Short Answer Writing Assignment
All answers should be complete sentences.
We need to find the confidence interva
Statistics Lab Week 4
Name: _
MATH221
Statistical Concepts:
Probability
Binomial Probability Distribution
How to load the data in MiniTab
The data for the Week 4 lab is the same dataset used for the Week 2 lab. This dataset is
referred to as the Class S
MATH399 StatisticsLab Week 2
Question 1 is worth 5 points and each question after that is worth 4.5 points, for a
total of 50 points for the lab.
Name: _
Statistical Concepts:
Using Excel
Graphics
Shapes of distributions
Descriptive statistics
NOTE: D
Hi again, these are from the 5th edition of the book, which fits better to what we were doing this week,
usually the solutions transfer over from edition to edition quite nicely, but looks like the 6 th edition did an
overhaul. :) Hope these will help!
a. ILurn 11:. vam mumlawn
You flip a coin 2 times and count the number of times the coin lands on heads.
This is a binomial experiment because:
I) This experiment consists of repeated trials. cfw_You tossed a coin 2 times)
2) Here, each trials output a
PROF ROBISONS OPENING POST EXERCISES SOLUTIONS TO
SECTION 4.3
Section 4.3 # 1, 5, 1114, 16, 22, 27 and 30
#1. P(3) = (0.65)(0.35) = 0.08
#5. P(4) = ( 5^4 * 2.71828^(5) / 4! ) = 0.175
#11. Geometric, you are interested in counting the number of trials un
Solutions to Section 5.2 # 13, 18, 22, 27 and 29 pp. 253  255 Here are tables and
Calculator steps) These exercises are from last edition, and suit us better so, Ive included
all the question parts and calculator solution steps
#13. A survey was conducte
Week 2 discussion math399N
Correlation coefficient for short is a measure of the degree of linear relationship between two variables, usually
labeled X and Y. While in regression the emphasis is on predicting one variable from the other, in correlation t
PROF ROBISONS OPENING POST SECTION 4.1 EXERCISES SOLUTIONS WORKED OUT USING THE TI
84 SE CALCULATOR
Section 4.1 # 13, 15, 20, 24, 27 and 30
#20 With TI 84 SE Calculator: STAT> EDIT
a) L1 (2nd 1) for x values
L2 (2nd 3) for f values
L3 (Use up arrow til L
224
CHAPTER 6
I
CONFIDENCE
INTERVALS
6.1 EXERCISE SOLUTIONS
1. You are more likely to be correct using an interval estimate because it is unlikelyf4t
estimate will equal the population mean exactly.

._



5. 1.28
13 E=z
9. xp=3.84.27
=0.47
'"'

PROF ROBISONS OPENING POST SECTION 4.2 EXERCISES SOLUTIONS WORKED OUT USING THE TI
84 SE CALCULATOR
Section 4.2 # 17, 20, 22, 25, 29, 32 and 33
Each exercise in this section follows a binomial distribution.
With the TI 83/84 SE calculator: use 2nd Vars 0
Solutions to Section 5.3 # 1, 6, 10, 12, 24, 28, 33, 34 and 39 pp 262  264
(Here are Table and Calculator steps, excel notes were well distributed throughout the
week. :) ) These exercises are from last edition, and suit us better so, Ive included all th
Professor and Class,
A binomial experiment is a statistical experiment that has the following properties:
1. The experiment consists of n repeated trials
2. Each trial can result in just two possible outcomes. We call one of these outcomes a success and
t
\
.~'\
.
h
1
fp the population proportion of successes, use the point~.
0
,
X
A
p=.
n
2. True
3.
pA

=X=
q=
752 :0.750
1002
1 .0 = 0.250
q=l
4. .0=x
n
n
5. .0= x = 4912
n 11,605
p:0.577
8. (0.;45,0.475)
q=
0.423
_ .__.
6.
:0.830
2939
1 .0 = 0.170
Week 5 discussion
Professor and class,
The zScore and the Central Limit Theorem.
The Central Limit Theorem is a very important theorem in statistics. It basically confirms what might be an intuitive truth to you:
that as you increase the sample size for
Week 3 discussion
Professor and Class,
Classical probability is used when each outcome in a sample space is equally likely to occur. The classical
probability for an event E is given by P(E) = the number of outcome in an event E / total number of
outcome
MATH 339 Statistics
Week 4 iLab
Name: TerriJane Siega
MATH339
Statistical Concepts:
Probability
Binomial Probability Distribution
Calculating Binomial Probabilities
Open a new Excel worksheet.
1.
2.
3.
4.
5.
Open spreadsheet
In cell A1 type success as
MATH 221 Statistics for Decision Making
Week 4 iLab
Name: _Kelsey Pittman_
MATH221
Statistical Concepts:
Probability
Binomial Probability Distribution
Calculating Binomial Probabilities
Open a new Excel worksheet.
1.
2.
3.
4.
5.
Open spreadsheet
In cel
MATH 339 Statistics
Week 4 iLab
Name: TerriJane Siega
MATH339
Statistical Concepts:
Probability
Binomial Probability Distribution
Calculating Binomial Probabilities
Open a new Excel worksheet.
1.
2.
3.
4.
5.
Open spreadsheet
In cell A1 type success as
MATH 221 Statistics for Decision Making
Week 4 iLab
Name: L_
MATH221
Statistical Concepts:
Probability
Binomial Probability Distribution
Calculating Binomial Probabilities
Open a new Excel worksheet.
1.
2.
3.
4.
5.
Open spreadsheet
In cell A1 type succ
MATH 221 Statistics for Decision Making
Week 6 iLab
Name:_Li _
Statistical Concepts:
Data Simulation
Confidence Intervals
Normal Probabilities
Short Answer Writing Assignment
All answers should be complete sentences.
We need to find the confidence inte
1
MATH 221 Statistics for Decision Making
Week 2 iLab
Name: L_
Statistical Concepts that you will learn after completing this iLab:
Using Excel for Statistics
Graphics
Shapes of Distributions
Descriptive Statistics
Empirical Rule
Week 2 iLab Instruct