Keer Fan
Assignment1
STAT2183W
Report
Introduction
There are many IRS forms that people usually need to fill out. The Internal Revenue Service
(IRS) claims that three of its forms (Form A, B, and C) should each typically take about 160
minutes to fill out
Testing Category Probabilities: One Way Table Example
A large firm has established what it hopes is an objective system of deciding on annual
pay increases for its employees. The system is based on a series of evaluation scores
determined by the superviso
Wilcoxon Signed Rank Test Example
A city park developer compared a new formulation of a fertilizer, brand A, to the
previously used fertilizer brand B, on each of 20 different softball fields. Each field was
divided in half, with brand A randomly assigned
Comparing Two Population Means: Paired Difference Example
A manufacturer of automobile shock absorbers was interested in comparing the durability
of its shocks with that of the shocks produced by its biggest competitor. To make the
comparison, one of the
Testing Category Probabilities: Two Way Table Example
A large brokerage firm wants to determine whether the service it provides to affluent
clients differs from the service it provides to lower-income clients. A sample of 500
clients is selected, and each
Inference about a Population Proportion Example
According to a survey conducted 5 years ago, 42% of summer visitors to a citys main
park are tourists from out of town. To check whether this percentage has changed, a new
survey was conducted. Of the 250 pa
Wilcoxon Rank Sum Test Example
An investigator designed a test to study the effect of alcohol on driving reaction times.
Ten participants consumed a specified amount of alcohol and another group of ten
participants consumed the same amount of a non-alcoho
Table 1. Summary of Frequency Procedure
Test
n_win Frequency Percent Percent
0/4 stock over performed
3
2.40
6.25
1/4 stock over performed
23
18.40
25.00
2/4 stock over performed
51
40.80
37.50
3/4 stock over performed
39
31.20
25.00
4/4 stock over perfor
The SAS System
20:52 Thursday, May 11, 2017
The REG Procedure
Model: MODEL1
Dependent Variable: risk
Number of Observations Read
107
Number of Observations Used
107
Analysis of Variance
DF
Sum of
Squares
Mean
Square
F Value
Pr > F
4
94.87672
23.71918
25.8
20:28 Sunday, December 04, 2016 1
The SAS System
The MEANS Procedure
Analysis Variable : PRICE
N
Obs
N
Lower 95% Upper 95%
Mean Median Std Dev CL for Mean CL for Mean
308 308 5019.48
4215.00
3403.12
4637.92
Minimum Maximum
5401.05 638.0000000
16008.00
Ana
20:28 Sunday, December 04, 2016 1
The SAS System
The MEANS Procedure
Analysis Variable : nicotine
N
Leaf Obs N
Mean
Lower 95% Upper 95%
Median CL for Mean CL for Mean
Std Dev Minimum Maximum
A
10 10 10.2690700 10.5822500
9.4973661
11.0407739 1.0787676
8.1
Are The Experts Correct?
Contents
Introduction.
Method and results.
Discussion and conclusion.
Appendix.
Introduction
The goal of this statistical analysis is to determine whether or not reaction times between people who
are sober and people who have cons
Fishers Exact Test Example
A sample of 24 teenagers is divided into male and female, and those that are and are not
currently dieting. We hypothesize that the proportion of dieting individuals is higher
among the women than among the men, and we want to t
Comparing Two Population Means: Independent Sampling Example
In a packing plant, a machine packs cartons with jars. It is supposed that a new machine
will pack faster on average than the machine currently used. To test this, the times it takes
each machin
Testing Category Probabilities: One Way Table Example
A large firm has established what it hopes is an objective system of deciding on annual
pay increases for its employees. The system is based on a series of evaluation scores
determined by the superviso
Testing Category Probabilities: Two Way Table Example
A large brokerage firm wants to determine whether the service it provides to affluent
clients differs from the service it provides to lower-income clients. A sample of 500
clients is selected, and each
Factorial Experiment: Two Factor Example
Suppose the USGA tests four different brands (A, B, C, D) of golf balls and two different
clubs (driver, five-iron) in a completely randomized design. Each of the eight Brand-Club
combinations (treatments) is rando
Completely Randomized Design: Single Factor
Suppose the USGA wants to compare the mean distances associated with four different
brands of golf balls when struck with a driver. A completely randomized design is
employed, with Iron Byron, the USGAs robotic
Kruskal-Wallis H-test Example
Suppose a health administrator wants to compare the unoccupied bed space for three hospitals in
the same city. She randomly selects 10 different days from the records of each hospital and lists
the number of unoccupied beds f
Factorial Experiment: Two Factor Example 2
Refer to the previous Two Factor Example handout. Now suppose the same factorial
experiment is performed on four other brands (E, F, G, H), and the results are:
BRAND
Driver
Club
Five-Iron
E
238.6
241.9
236.6
244
Friedman Test Example
Suppose you have used a randomized block design to help you compare the effectiveness
of three different treatments, A, B, and C. You obtained the data given in the following
table and plan to conduct a Friedman Fr-test:
Block
1
2
3
Cover Page
(Should be one page including your name, the title of your paper and the date.)
Title (again)
Introduction
(Write 1-2 paragraphs. Be sure to set up the problem and state what you are trying to prove.)
Part (i).
(Give an appropriately titled and
Randomized Block Design Example
Refer to the Completely Randomized Design example. Suppose the USGA wants to
compare the mean distances associated with four brands of golf balls when struck by a
driver, but wish to human golfers rather than the robot Iron
The SAS System
20:13 Thursday, May 11, 2017
The REG Procedure
Model: MODEL1
Dependent Variable: risk
Number of Observations Read
107
Number of Observations Used
107
Forward Selection: Step 1
Variable culturing Entered: R-Square = 0.3119 and C(p) = 37.8970