Practice Questions for Exam 1 NOTE: These are just Practice Problems. This is NOT meant to look just like the test, and it is NOT the only thing that you should study. Make sure you know all the material from the notes, quizzes, suggested homeworks a

Exam 1 Review Example 1: Do pregnant women who smoke have babies with lower birth weight than those who do not smoke? A researcher thinks so. To test her conjecture she has recorded the birth weight of babies born at Shands in a given period, togethe

Exam 3 Review Do plain and peanut m&m's have the same distribution of colors? Several bags of each variety (plain and peanut) m&m's were randomly selected, and the number of candies of each color was counted before eating any of them. The data appear

STA 3024
EXAM 3 Practice Problems
Spring 2008
NOTE: These are just Practice Problems. This is NOT meant to look just like the test, and it is NOT the only thing that you should study. Make sure you know all the material from the notes, quizzes, su

Chapter 14 : Non-parametric Statistical Inference A whole new world! This is because non-parametric statistics is a totally new (and different) concept in the domain of statistical inference. Till now, all the statistical procedures that we have used

Wilcoxon Signed-Rank Test Last time we learnt about the Sign test for comparing data. One disadvantage of the Sign test is that it only takes into account the but NOT the exact of the difference between the two observations in a pair. Wilcoxon's Sign

Notes : When should we use non-parametric tests? When the is too small.
When the response distribution is not This can happen if the data has . In this case statistical methods which are based on the normality assumption breaks down and we have to u

Association in (r x c) tables : In the last lecture we learnt how the difference of and the ratio of can be used to measure the strength of association in contingency tables. Basically, these measures compare the (or probabilities) for a particular r

Advantages of 2 statistic over z statistic : A statistic can only be used to compare a estimate to its hypotheses value i.e for hypotheses like : H0 : This is only possible in or H0 : tables as we saw above.
For contingency tables with more than ro

Chapter 10 Association between Two Categorical Variables What we have seen so far? o In Chapters 3 and 11 we analyzed the association between a response variable and a explanatory variable using simple regression analysis. In Chapter 12 we we analyze

Comparing Two Means Two groups can be compared on a response variable if we compare their I. Confidence Intervals Let 1 :
.
mean corresponding to the response variable for the first group. 2 : mean corresponding to the response variable for the sec

Chapter 8 : Significance Tests about Hypotheses Significance tests or Tests of Hypotheses is another major method of statistical inference alongside point and interval estimation. A Hypothesis is a statement about one or more . Eg : A statement about

EXP 3604 EXAM 3 REVIEW SHEET The following concepts will be included on the exam: The Atkinson-Shiffrin Model of memory sensory memory, short-term memory, and long-term memory (general relationships/comparison) Serial Position curve Primacy Effect R

EXAM 2 Review Sheet On this exam, more questions will come from information in the book that may not have been covered in lecture. These are the concepts with which you should be familiar for the exam: Attention Attenuation theory/cocktail party phen

Cognitive Psychology Exam 2 Study Guide
Term
Key 1
Key 2
Attention
Gateway
Focus
Attenuation Theory
Unattended
"Turned Down"
Cocktail Party Effect
Attenuation
Name Calling
Late Selection
All is processed
Filter Out
Driving
Less Efficient
Divided Attention