Tam Nguyen, tnn8
Assignment #5 for Psych 3500, 2013
Psychology 3500 Statistics and Research Design
Assignment #5, due Wed 6 November 2013
Answer the following questions. Ideally, type your answers into the word processor document;
to create figures, eithe
Tam Nguyen, tnn8
Assignment #4 for Psych 3500, 2013
Psychology 3500 Statistics and Research Design
Assignment #4, due Wed 23 October 2013
Answer the following questions. Ideally, type your answers into the word processor document;
to create figures, eithe
(1) The Central Limit Theorem and the distribution of
sample means
(2) Introduction to hypothesis testing
Quiz #3 has been posted on Blackboard, due SUN
Covers material in Chapters 6-7.
Assignment #2 posted, due next WED, 2:30 pm
Both uploaded to Bb and
(1) Finish up variability (Ch 4)
(2) Prepare for next unit on standardized scores (Ch 5)
Quiz #2 has been posted on Blackboard
Covers material in Chapters 4-5.
Read the Intro Text in the Quizzes section on Bb!
Assignment #1 due FRIDAY, 2:30 pm
Both upl
Lecture 11
9/19/19
Hypothesis testing
Hypothesis testing
and statistical power
A structured process to determine whether some treatment has a genuine effect
SAT-taking
population
No quiz this week (exam)
= 500
= 100
Assignment #2 now due
Wed of next week
Lecture 10
Hummmm
9/16/15
(1) The Central Limit Theorem and the distribution of
sample means
(2) Introduction to hypothesis testing
P(X 600) = 0.1587
The probability of a sample of
25 students having a mean
SAT score of 600 or greater is:
Quiz #3 has been
Lecture 8
9/12/16
Probability and distributions
1
Probability: independent random sampling
For these general rules to apply, sampling must be:
(1) Random: Every individual in the population
must have an equal chance of being selected
(2) Independent: Prob
Lecture 7
9/9/16
(1) Interquartile range and box plots
(2) Standardized scores (Ch 5)
Syllabus v1.3 posted prelim #2 bumped back
Quiz #2 has been posted on Blackboard
Covers material in Chapters 4-5.
Read the Intro Text in the Quizzes section on Bb!
Tur
Prelim #2 Scores
100
Lecture 28
11/7/16
Overview
90
15
Mean = 79.3
SD = 12.1
Pearson: measure 2 different factors to
possibly identify relationship/correlation
b/w the two
Quick note re Spearman correlation and ranks
60
70
10
0
5
Frequency
80
Median = 81
BINOMIAL DISTRIBUTION
2
n
(discrete distribution that counts whole # of
boxes 2 categories on measurement scale)
normal distribution
n
= pn = npq
pn & qn 10
THE p-VALUE & ITS COMMON MISINTERPRETATIONS
THE PROBABILITY OF OBTAINING THE TEST STATISTIC THAT
Lecture 9
9/14/16
(1) The normal distribution
(2) The central limit theorem and the distribution of
sample means
Quiz #3 has been posted on Blackboard, due SUN
Covers material in Chapters 6-7.
Read the Intro Text in the Quizzes section on Bb!
Assignment
Lecture 5
9/02/16
(1) Finish up measures of central tendency (Ch 3)
(2) Start on variability (Ch 4)
Quiz #1 has been posted on Blackboard
Covers material through Chapter 3.
Read the Intro Text in the Quizzes section on Bb!
Assignment #1 will post today
11/11/11 Who's Winning the Republican Race? Everybody! - NYTimes.com
Eh: Nmnxkihm
Campaign Stops
Strung Minn! IIII 'II'II m Ell-dim
NOVEMBER10,2011, 11:02 PM
Whos Winning the Republican Race? Everybody!
By JOHN ALLEN PAULOS
Polls indicating that Republica
all! Sm fk mm Reprints
This copy isfor your personal, noncommercial use only. You can order presentation-ready copiesfor
distribution to your colleagues, clients or customers here or use the Reprints" tool that appears next to any
article. Visit www.nytre
Hypothesis testing
and statistical power
No quiz this week (exam)
Assignment #2 now due
Wed of next week (9/28)
Both uploaded to Bb and on
paper in-class.
Prelim Exam #1 THIS
FRIDAY, 9/23, in class.
1
Hypothesis testing
A structured process to determine w
(1) Finish up measures of central tendency (Ch 3)
(2) Start on variability (Ch 4)
Quiz #1 has been posted on Blackboard
Covers material through Chapter 3.
Read the Intro Text in the Quizzes section on Bb!
Assignment #1 will post today or tomorrow
Due next
3t
3%
b
H
H
CH9
Tuesday, August 23, 2016 5:36 PM
Probabilit
lnfcrantial saw?
statistics
Population
Ma fraction/proportion of all possible outcomes (A, B, c, D.)
(# of memes)
total # of possible outcomes
NOTATION: Probability of selecting a king = pa
PSYCH 3500 QUIZ 2 & SOLUTIONS
1. A population of scores has a mean of mu=50
2.
3.
4.
5.
6.
7.
8.
and a standard deviation of sigma=10. If five
points are added to every score in the
population, then the new mean and standard
deviation would be _.
A
PSYCH 3500 QUIZ 1 & SOLUTIONS
1.
In a correlational study, _
2.
In an experiment, the researcher manipulates the _ variable and measures
changes in the _ variable.
A researcher is interested in the sleeping habits of American college students. A
Lecture 6
9/7/16
(1) Finish up variability (Ch 4)
(2) Prepare for next unit on standardized scores (Ch 5)
Quiz #2 has been posted on Blackboard
Covers material in Chapters 4-5.
Read the Intro Text in the Quizzes section on Bb!
Assignment #1 due FRIDAY,
Hypothesis testing
and statistical power
No quiz this week (exam)
Prelim Exam #1 THIS
FRIDAY, 9/23, in class.
One 8.5x11 page of
notes, front and back.
Include equations!
Bring a calculator of
any type that does not
communicate with
other devices.
1
Z-s
The t Statistic
do not know
must estimate it using sample standard
deviation s
Like z statistic assumes that
doesnt change w/
treatment (only mean does)
Test hypotheses about whether a treatment has changed
a population mean
Unlike z statistic, true