Homework 8 (50pts)
Due 10/27
Lixby Susana Diaz Amaya
PUID 0028621958
1. (This is also the Sweetening cola example in topic 8): calculating power. The cola maker
wants to test at the 5% significance level the following hypotheses:
H0: = 0 versus Ha: > 0
Te
Homework 6 Due 10/6
1. Judys doctor is concerned that she may suffer from hypokalemia (low potassium in the
blood). There is variation both in the actual potassium level and in the blood test that
measures the level. Judys measured potassium level varies
Homework 3
Due 9/15
1. Each child born to a particular set of parents has a probability 0.25 of having blood type O. If
these parents have 3 children. Define the variable X to be the number of blood type O in the
children.
a) Find the probability model (s
Homework 4 (50 pts)
Due by Thursday 9/22
1. Antibiotic resistance occurs when disease-causing microbes become resistant to antibiotic
drug therapy. Because this resistance is typically genetic and transferred to the next
generations of microbes, it is a v
Homework 9
(50 pt) Due Thursday 11/3
Susana Diaz Amaya
PUID: 0028621958
1. Human beta-endorphin (HBE) is a hormone secreted by the pituitary gland under conditions
of stress. A researcher conducted a study to investigate whether a program of regular exerc
Homework 10
(50pts) Due 11/10
Susana Diaz Amaya
PUID 0028621958
1.
One hundred rats whose mothers were exposed to high levels of tobacco smoke during
pregnancy were put through a simple maze. The maze required the rats to make a
choice between going left
Exam
Name_
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Graph the line that passes through the given points.
1) (0, 9) and (9, 0)
1)
A)
B)
C)
D)
Answer: D
1
2) (-10, -10) and (5, 5)
2)
A)
B)
C)
D)
STAT 350 (Spring 2016)
Lab 3: R Solution
Author: Yao Chen
Lab 3 (80 pts.) - Assessing the Normality of Data
Objectives: Creating and Interpreting Normal Quantile Plots (QQ
plots)
Please submit the data for parts A, B and C ONLY (clearly labeled) at the en
Introduction
This is a greatly expanded version of what is in Section 1.3 in the book. I have assigned this section
as reading, however, you will get all of the information in this document.
Remember, we are interested in statistical inference. Therefore,
STAT 350 (Spring 2016)
Lab 6 R Solution
Author: Yao Chen
Lab 6 (105 pts.) - One Sample T Confidence Interval and Test
Objectives: Confidence interval and significance tests
A. (50 points) the actual elapsed time of flights (Data Set: cleaned airline data
STAT 350 Exam 2 Review Problems
Spring 2016
1. If children are given more choices within a class of products, will they tend to prefer that
product to a competing product that offers fewer choices? Marketers want to know. An
experiment prepared three sets
Practice Exam
1
STAT 350 Exam 2: Practice Exam
Spring 2016
Name (Print) : _
PUID _
Instructor (circle one):
Findsen
Monter
Tooman
Class Time (circle one):
9:30 am
11:30 AM
12:30 PM
1:30 PM
2:30 PM
3:30 PM
Womble
ONLINE
Instructions:
1.
You are expected to
Homework Online 8 (22 points)
Due Tuesday March 29:11:55 pm
1. In a hypothesis test involving two-samples, the hypothesized difference in means must
be 0.
a.
b.
True
False
Answer: False The hypothesized difference can be any real number though it is norma
STAT 350 (Spring 2016)
Lab 3: SAS Solution
Author: Yao Chen
Lab 3 (80 pts.) - Assessing the Normality of Data
Objectives: Creating and Interpreting Normal Quantile Plots (QQ
plots)
Please submit the data for parts A, B and C ONLY (clearly labeled) at the
STAT 350 (Spring 2016)
Lab 7: R Solution
Author: Yao Chen
Lab 7 (90 pts. + 15 pts. BONUS): Two Sample t Independent and
2-Sample t Pairs Procedure
Objectives: Confidence interval and significance tests for two
samples.
A (45 points) Is the departure delay
Homework Online 5 (19 points)
Due Tuesday Feb. 16:11:55 pm
1. The mean and standard deviation of a Uniform distribution only depend on the interval
over which the distribution is defined.
a.
b.
True
False
Answer: a. True. The parameters of a uniform distr
STAT 350 (Spring 2016)
Lab 4: Solution
1
Lab 4 (100 pts. + 25 pts. BONUS) Central Limit Theorem
Objectives: A better understanding of the Central Limit Theorem
This is a group lab so only one report should be submitted per group. There should be 3 4
peopl
STAT 350 (Spring 2016)
Homework 8 Written Key
1
Homework 9 (26 points)
due Tuesday March 29: 11:55 pm
(3 pts.) 1. In each experiment below, determine whether the data are obtained
independently or are paired. If the data are independent, please explain yo
STAT 350 (Spring 2016)
Lab 6 SAS solution
Author: Yao Chen
Lab 6 (105 pts.) - One Sample T Confidence Interval and Test
Objectives: Confidence interval and significance tests
A. (50 points) the actual elapsed time of flights (Data Set: cleaned airline dat
STAT 350 (Spring 2016)
Homework 7 Written Key
1
Homework 7(20 points)
due Tuesday Feb. 16:11:59 pm
(4 pts.) 1. Many companies are increasingly concerned about computer security and
employees using their computers for personal use. A random sample of 50 em
STAT 350 (Spring 2016)
Lab 5: R Solution
Lab 5 (80 pts.) - Interpretation of Confidence Intervals and the
difference between t and z tests
Objectives: A Better Understanding of Confidence Intervals and
the critical values.
A. (40 points) Interpretation of
Lab 5 (100 pts.) - Interpretation of Confidence Intervals and Power
Analysis for Z tests
Objectives: A Better Understanding of Confidence Intervals and Power
Curves.
A. (40 points) Interpretation of a Confidence Interval (no data file required). Use softw
STAT 350 (Spring 2016)
Lab 7 SAS Solution
Author: Yao Chen
Lab 7 (90 pts. + 15 pts. BONUS): Two Sample t Independent and
2-Sample t Pairs Procedure
Objectives: Confidence interval and significance tests for two
samples.
A (45 points) Is the departure dela
Fall 2015 STAT 350 Project (150 points)
Due Friday April 15, 2016
Objectives: Statistical Inference
Instructions
Groups of 2 4 students are required.
Only PDF files are accepted.
NO late work is accepted.
Names of all students in the group with their
Chapter 1: Looking at Data - Distributions:
http:/anengineersaspect.blogspot.com/2013_05_01_archive.html
1
What is Statistics?
http:/vadlo.com/cartoons.php?id=71
2
What is Statistics
Statistics is the science of learning from data.
Components
Collectio
Chapter 4. Probability: The Study of Randomness
http:/mikeess-trip.blogspot.com/2011/06/gambling.html
1
Uses of Probability
Gambling
Business
Product preferences of consumers
Rate of returns on investments
Engineering
Defective parts
Physical Scien
Chapter 2: Looking at Data - Relationships
http:/www.forbes.com/sites/erikaandersen/2012/03/23
/true-fact-the-lack-of-pirates-is-causing-global-warming/
1
General Procedure
1.
2.
3.
4.
Plot the data.
Look for the overall pattern.
Calculate a numeric summa
Chapter 12: One-Way ANalysis Of Variance
(ANOVA)
http:/www.luchsinger-mathematics.ch/Var_Reduction.jpg
1
12.1: Inference for One-Way ANOVA - Goals
Provide a description of the underlying idea of ANOVA
(how we use variance to determine if means are
differ
Review for Final Exam
Tables Provided: z table, t table, Studentized Range Distribution
New Material:
Chapter 12
1. Be able to explain why variances are used to determine if the means are different
(background of ANOVA).
2. Be able to determine the factor