La Tristeza del Maya
One day the animals came to a Mayan and said
-It's a shame you're so sad. Ask for what you want and you'll have it
The Mayan said:
-I want to be happy
The owl responded:
-Who knows what is happiness? Ask us for more human things
-Well
DS280 INTRODUCTION TO STATISTICS Section 2
SPRING SEMESTER 2003
Ultimate Knowledge Festival
(known to the mundane as a Final Exzm)
For those who have worked faithfully through the term, a final examination should not be an
ordeal, but a time of fulfillmen
Example: A teacher wishes to compare the effectiveness of two teaching methods. Students are
randomly divided into two groups. At the end of the course, a comprehensive exam is given to all
Students. Group A consists of 49 students with a mean score of 74
Group Activity 3.2 - Confidence Intervals and Determining Sample Size
is.
L
1) A random selection of 36 Honda Accords provides a mean gas mileage of 29.3 miles
PEI gallon. The standard deviation of the population is known to be 3.1. Find the 90%
CONfldenc
STA 2023
Professor Rosenthal
Group Activity 3.1: The Normal Distribution
\
:56 the. following information for questions given below. Make sure to include
) ThDelDropriately shaded graphs for each of the questions below.
is $ean electric bl of all residen
STA 2023
. . v P f
GA 2.1. Practice Problems on Statistical Counting: m essor Rosemhal
DA cou
th ple plans to have 3 kids. How many different possibilities are there for the orderings of
e genders? (e.g. one possibility is girl. girl, girl)
2 ' .24. ._:Z_
9) A Student has narrowed down his choiCes for colleges that he would like to attend down to 7.
He is considering to apply to only 3 due to the high application costs. In how many ways can he
select the 3 colleges from the 7 that he is interested in?
7.!
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In. I I. ll- .,_ 14.11. than, H H 1-
l ' " ' \ , e4 0f 4
PM. I): Menu chressnon Concepts Fag
Regression Assignment 3
'I store.
' ' ' retal
I he lollowmg data represent the dollar value ofsales and advemSIng for a
Use it lIcsl at (z ; 0.05 to nd ifa
w
W
L_H Othes's Teas
Table 2| Use fo_r emu Samgle p-val and Cr (e a 53-0
r .-,_, eve l "e e. 7 ~-.
Student's 14:1an s . mu. 3 H othesiu Tut :; Table 1a Determine the NU
P . .
rof. D1 Slena Regression Concepts
Regression Assignment 1
The following data was collected comparing the score on a
the exam score.
a. Construct a scatterplot.
. . . iable
b. Does there appear to be a llnear reiatlonshlp between the W0 :iatlip as
OBLFM' Does x
point
THE PR
measured by a 4
1)
2) ln parking lot, reaction
Driver walk a stratght line
3)
4) Drive ' h index nger
DENT sample data
TWO INDEPEN
NG DATA:
COLLECTING and AGGREGATl
One that drinks x
Ie groups.
01 and second 3 p no alcohol
hf? a
m V
ll~. 'Vllanx. yin . "~I
, Hm ,
Formula Sheet for Descriptive Statistics
Statistical Measures of Central Tendency:
high l IUW
_. EX
- rmdmnge 2
I7 .
mean midrange
Statistical Measures of Disgerslon:
= highest value lowest value
range
9 data differs f
Statistics Chapter 2
5 Key Characteristics of Data
1. Center a representative value that indicates where the middle of the data
set is located
2. Variation a measure of the amount that the data values vary
3. Distribution The nature or shape of the spread
Binomial Distribuiton
n=
p=
q=
x=
10
0.055
0.945
4
Mean=
Var=
StDev=
0.55
0.51975
0.7209
exact
p(x)= 0.00136855
most.
p(X <=x) =
0.9999
at least.
p(X >x) = 0.99999521
#9
#10
incident
accuracy
inaccuracy
num of people
expect num who have disease
people who
The mean mass of babies born in the USA is 3295grans. The standard deviation is 600 grams
A) determine the proportion of babies that hae a mass below 2400 grams.
6.79%
B)Determine the proportion of how many babies in between 3500 and 2500?
54.10%
c) Great
WEB COMPONENT EXPLANATION
All of my classes are traditional. None are Internet classes.
In the classroom, I will teach a new theory and we will solve
problems and applications based on that theory.
Attendance is required. All exams will be given in class.