Quiz 3. PLS120 Fall2016. This will be graded.
5.
There are 23 pairs of observed girth (cm) and weight (kg) of
piglets. What are the units of the slope in a simple linear
regression (SLR) of weight on girth?
A. 1/kg
B. 1/cm
C. cm/kg
D. kg/cm
6.
What does i
Group
All
Variable
Mean
Std Dev
Coeff of
Variation
Variable
Herd 1
Mean
Std Dev
Coeff of
Variation
COW
FAT
1628.38 3.66
87.80 0.60
5.39 16.35
N
Mean
Std Dev
Coeff of
Variation
Variable
Herd 2
N
COW
FAT
1633.88 3.66
79.06 0.50
4.84 13.68
N
COW
FAT
1622.26
PLS 120
ANIMAL SCIENCE
EXERCISE #5
Data Summarization and Hypothesis testing
The objective of this exercise is to review the material that we have learned up to this point in the
laboratory and to improve your skills in utilizing the SAS programs. You wil
1.
A.
B.
C.
D.
The range of a sample is a measure of
dispersion
central tendency
skewness
independence
Correct answer: A
2. A survey is done to determine what corn varieties are used in three regions of Mexico. A
sample of farms is randomly selected and t
9/25/15
Topics
PLS 120 Fall 2015
Gambling promotes science!
From Calculus, Volume II by Tom M. Apostol (2nd edition, John Wiley
& Sons, 1969 ):
"A gambler's dispute in 1 654 led to the creation of a mathematical
theory o
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Oct 4, 2015, 18:45
10/4/15, 18:45, 9m 34s
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Oct 4, 2015, 18:31
10/4/15, 18:31, 11m 3s
9/26/16
Population, Parameter, Sample, Statistic
PLS 120
DATA & DESCRIPTIVE STATISTICS
MEAN, MEDIAN, MODE
VARIANCE & STANDARD DEVIATION
FREQUENCIES & FIVE-NUMBER SUMMARY
USING PROBABILITIES
BAYESIAN AND FREQUENTIST PROBABILITY
TYPES OF RANDOM VARIABLES
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Oct 4, 2015, 18:45
10/4/15, 18:45, 9m 34s
-title: "Lab02: Summary Statistics By Group and the Normal Distribution"
author: "YourFirstName YourLastName"
date: "September 25, 2016"
output: html_document
-`cfw_r setup, include=FALSE
knitr:opts_chunk$set(echo = TRUE, include = TRUE)
library(pander)
`
-title: "Lab01: Data Exploration and Summaries"
author: "Amina Nasufovic"
date: "September 23, 2016"
output: html_document
-`cfw_r setup, include=FALSE
knitr:opts_chunk$set(echo = TRUE)
`
# Instructions
For this lab you will modify this file and submit th
-title: "Lab05: Data Summary, Test of One Population, Equality of Variance and
Test of Two Populations"
author: "Amina Nasufovic"
date: "10/28/16"
output: html_document
-`cfw_r setup, include=FALSE
knitr:opts_chunk$set(echo = TRUE)
`
# Instructions
For th
Homework #2 Key
PLS 206 Spring 2007
1. State the null and alternative hypotheses in terms of values of parameters. [10]
The null hypothesis is that the relative growth rate is the same for all temperature groups.
This can be expressed in terms of paramete
erpasonsnnd nds among money-r means 177
8.
10.
ll.
12.
l3.
I4.
15.
Refer to problem 14 of Chapter 8. Identify the stars that are signicantly different
from one another.
Refer to problem 15 of Chapter 8. Identify the machines that are different from
one an
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Oct 4, 2015, 18:57
10/4/15, 18:57, 5m 29s
10/2/15
Dice vs. Agricultural Experiments
What is the probability of more
than zero pairs of 6's in 24 rolls
of two dice?
Which of two alfalfa varieties
has the highest water use
efficiency?
Model: both dice are "fair"
and their results are
independent.
10/2/15
Topics 30 Sep 2015
1. Frequency distributions and histograms
2. Central tendency and dispersion
a. Summation and subscripts
b. Two-way tables
3. Five-number summary and boxplot
a. Median, quartiles and extremes
b. Mode, mean
Frequency Distribution
9/28/15
PLS 120 MO 28 SEP 15
DATA & DESCRIPTIVE STATISTICS
MEAN, MEDIAN, MODE
VARIANCE & STANDARD DEVIATION
FREQUENCIES & FIVE-NUMBER SUMMARY
USING PROBABILITIES
BAYESIAN AND FREQUENTIST PROBABILITY
TYPES OF RANDOM VARIABLES
RULES OF PROBABILITIES
RAND
The purpose of this laboratory is to enhance your understanding of Analysis of Variance
(ANOVA). We will introduce the randomized complete block (RCB) design.
The exercise shows how accounting for and quantifying the sources of variation improves our
abil
Midterm 2. PLS120 Fall2015.
D. MSE & dfe
E. SSE & SST
Name: _ Test Form A
Student ID: _
ALL 20 QUESTIONS HAVE THE SAME VALUE. ANSWER
ALL QUESTIONS ON YOUR SCANTRON. SHOW YOUR
WORK IN THE SPACE BELOW EACH QUESTION.
Questions 1-7
A study is conducted to det
Make sure you submit your file in the Assignment area and also answer the questions in the corresponding
Assessment to be posted under Tests & Quizzes.
The shaded cells in this page are provided for your convenience to transfer the results to the Assessme
Homework 07
Simple Linear Regression.
Key points to learn in this exercise:
Calculation of estimated intercept and slope for linear regression.
Confidence intervals for intercept, slope and predicted expected response for a given level of X.
When studying
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to be posted under Tests & Quizzes.
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Perform