[3.1]: Q: Why is there an inverse exponential relationship between productivity and total cost,
instead of a straight-line relationship? What implications does this relationship have for project
managers and project engineers?
A: The reasoning behind an i
Subject: Boggs Bridge Rd. Replacement Project
Date Presented: Thursday December 1, 2016
Project Summary
The purpose of the project is the replacement of the Boggs Road Bridge in the Perry Township,
Muskungum County. This project will result in the demolit
For the Cross sections and determining what cross sections needed to be changed to fit the Super
elevation Transition Distance, the Crown Runoff and the Super Elevation Runoff needed to be calculated.
The Crown Runoff was calculated by taking the rate of
The cost estimates consisted of many unit costs and lump-sum costs. The lump sum cost
consisted of Bridge Beams (5 No. W24 x 76 with C12 x 25 galvanized cross frames), TST Rail and
type A anchors, Miscellaneous Items, and Equipment rentals (Screed and Con
Comparing Two Means
CE 6000
Applied Civil Engineering Statistics
Comparing Two Means
Examination of differences between
groups
Comparing Two Means
Simplest form of an experiment done with
only one independent variable that is
manipulated in only two ways
Non-parametric T-Tests
CE 6000
Applied Civil Engineering
Statistics
Parametric T-Test
T-Test is biased when assumption of
normality is not met
Possible Corrections
Larger Sample Size
Central Limit Theorem: Sampling distribution should
be normal when samp
Assignment: Homework Questions
Instructions
1. Two groups of people who were in relationships were randomly assigned to one of two
conditions. One group read GQ Magazine and the other group read Marie Claire. The
dependent variable was an objective measur
Module 4: Correlation
Correlation Transcript
Part 1
All right, today we are going to talk about correlation and how we use correlation for analysis
or reviewing different types of data. We will find how effective it is, how important it is, as
well as som
T-Test Transcript
Part 1
Today we are going to talk about the comparison of two means, which is nothing more than the
examination of differences between two groups. It is more powerful than just looking at
relationships, which is why you are probably goin
Module 4: Correlation
SPSS Correlation Transcript
All right. We're going to look at how to do correlation in SPSS. First file is "exam anxiety." But
based upon what we see in the lecture notes, we have the "amount of time to revise the
exam," which is the
SPSS T-Test Transcript
All right, let's go ahead and look at how to run a dependent t-test. We'll go to Analyze > Compare
Means. A paired t-test is the dependent t-test. We're looking for 2 variables. We're going to shift,
grab both of our variables, move
QUESTION 1
What provides a picture of the relationship between two variables?
Correlation coefficient.
QUESTION 2
Covariance depends upon the (3 words).
Units of measurement.
QUESTION 3
For interval data, we use the Pearson product-moment to determine the
Module 8: T-Test (Parametric and Non-Parametric)
Non-Parametric T-Test Transcript
The next is a non-parametric t-test. So we're going to start to run these when the t-test violates the
assumption of normality. If you don't want to do a non-parametric, the
QUESTION 1
Ordinal level data are characterized by:
Equal intervals between each adjacent score.
None of the other answers.
X- Data that can be meaningfully arranged by order of magnitude.
A fixed zero.
QUESTION 2
What is the advantage of using SPSS or an
122
Math 116 - 05: Test #4 (Chapters 16 19) Name: 1&5 7)
Fall 2012
Show work when possible to receive full credit for correct answers.
Give grammatically correct and clear explanations when asked to explain anything.
Problems I 4 are worth 5 points each
1. Descriptive Statistics
Def: With descriptive statistics, you provide simple summaries about the sample and the population,
such as mean, median, and mode. Descriptive statistics are not the focus of this course but they are
critical in the inferential
Chapter 8 Hypothesis Testing:
An Introduction
Steps in a hypothesis test.
Large sample tests for : two-tail.
Large sample tests for : one-tail.
Type I and Type II errors.
Definitions
In statistics, a hypothesis is an idea, an
assumption, or a theory abou
Chapter 5: z-Scores: Location of Scores
and Standardized Distributions
I t d ti
Introduction
to
t z-Scores
S
In the previous two chapters, we introduced
th concepts
the
t off the
th mean and
d the
th standard
t d d
deviation as methods for describing an e
Hypothesis Testing
CE 6000
Applied Civil Engineering Statistics
One vs. Two-Tailed Tests
One-Tailed Test
It is directional.and then we can have a one-sample or a two-sample test.
The null hypothesis for a one-sample test is setting everything equal to a
v
Data Analysis
and
Statistical Models
CE 6000
Applied Civil Engineering Statistics
Test Statistics
To test whether statistical models are a
significant fit of data collected
test statistics= variance explained by the model
variance not explained by the mod
How to make a boxplot inSPSS
Howtomakeaboxplot
in SPSS
Make sure you do this
Makesureyoudothis
Makesureyoudothis
k
d h
Output
Outliersthatare>2box
lengthsabovethe75%tile
Dressedweigght(lbs)
Max
75%tile
median
25%tile
Min
:\ ICVLI
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Problem 2
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