Introduction to the Practice of Statistics Ch 3:Producing Data Introduction Anecdotal Evidence - Based on haphazardly selected individual cases, which draw attention through personal interest and are not representative of any large group of cases Availabl
The heights, in inches, for 120 people (male and female) have been measured. The results are presented:
Download the data
Heights sample data:
66.74
74.6
5
69.3
8
64.2
9
66.7
8
66.4
9
67.9
7
65.2
2
66.2
7
69.9
2
68.6
60.08
67.05
68.1
6
60.6
7
60.1
3
66.7
Name: Kali Chemelewski
Friday T.A. name/Class time: Ryan and Hyoeun 930
Monday/Wednesday lecturer: Howell
Lab 6: Confidence Intervals and Hypothesis Tests
The researchers conducting the experiment to see if there is a relationship between swearing and
pai
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Description of variables in naturewalkdata data set
Subject
Gender
GendNum: numerical version of Gender cfw_1=F, 2=M
Age
DeprHist: history of depression cfw_Yes, No
DeprLvl: level of depression cfw_High, Medium, Low, None
DeprLvlNum: numerical version of
CHAPTER 3 EXPERIMENTAL AND SAMPLING DESIGN
Overview of how to answer a research question:
1.
Pick a specific question you want to answer.
2.
Decide on your population.
3.
Select a sample. The choices for sampling designs for this class are:
voluntary res
Subject Gender GendNumAge DeprHist
1F
1 28 Y
2M
2 31 N
3M
2 24 N
4F
1 23 Y
5M
2 27 N
6F
1 29 N
7M
2 17 Y
8M
2 42 Y
9F
1 26 N
10 M
2 31 N
11 F
1 21 Y
12 F
1 30 N
13 F
1 25 N
14 F
1 29 Y
15 M
2 33 Y
16 F
1 24 Y
17 M
2 23 N
18 M
2 28 N
19 M
2 24 Y
20 F
1 21
- 1 of 8
ID: MST.SD.DSM.05.0010
The life span at birth of humans has a mean of 88.05 years and a standard deviation of 13.32 years.
Calculate the upper and lower bounds of an interval containing 95% of the sample mean life spans at birth
based on samples
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STAT 301 8.31.09 Lesson 3, Section 2.6
Example 2: To See which regime gets the most pounds off Twelve overweight females have agreed to participate in a study of the effectiveness of four reducing regiments, A, B, C, and D. The researcher first calculates
STAT is 5th s f irst, Tuzov 301i n the table 8.26.09 Chapter 1, Lesson 2 Review of the types of Samples:
Which type of sample is used for each of the following scenarios? 1.A study is conducted to find out how many undergraduates at Purdue own cars. It is
STAT301 8.24.2009 Lecture 1, Chapter 3, Section 2.6
Statistics is not math. It is the science of collecting, organizing, and interpreting information, which we call data, with the goal of gaining understanding from the data. This is a critical thinking cl
For each story in problems 1-5, choose whether a confidence interval (CI) or hypothesis test (HT) is most appropriate, which type of problem it is, and the appropriate distribution. Choices for type of problem: A. 1-sample mean B. Two-way ANOVA D. 2-sampl
STAT 301 (Traditional and Online) SYLLABUS for Fall 2008 INSTRUCTOR: EMAIL: OFFICE: OFFICE HOURS: FRIDAY LAB T.A.: Mr. Thomas Howell thhowell@stat.purdue.edu MATH 234 Monday and Wednesday, 9-10:00am.
Any student may attend the office hours of any STAT 301
Lecture 9, Chapter 12 One-Way Analysis of Variance:
It is always interesting to compare data (salaries of women and men, responses to different treatments in a clinical trial). We have learned to display comparisons with back to back stemplots and side-by
Lecture 2 Section 1.1 Looking at Data There are two components in looking at or describing data: Individuals (units) are objects described by a set of data. A unit can be a person, a place, or a thing (ie. a student, the city of West Lafayette, Purdue Uni
PI'L babil itjr
Table entry for 2 Is
the area under the
standard nm‘ma] curve
to the left of z .
T538113 5"; 5611616111 normal prubabilitius
.00 .0| .02 .03 .04 .05 .06 .07 .08 .09
.0003 .0003 .0003 .0003 .0003 .0003 .0003 .0003 .0003 .0002
.0005 .0005
1 of 8
ID: MST.HT.TM.06.0010
The CEO of the Jen and Benny's ice cream company is concerned about the net weight of ice cream in
their 50 ounce ice cream tubs. He decides that he wants to be fairly sure that the mean weight of these ice
cream tubs () is gr