SAMPLE EXAM 3 STA 2023 FALL 012
SECTIONS 6.1, 6.2,6.3, 7.1-7.5
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
1) The probability distribution shown below descr ibes a population of
STA 2023 SAMPLE EXAM 4 QUESTIONS ON 8.1- 8.7
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
1) Researchers have claimed that the average number of headaches per student during a se
STA 2023 Sample Exam 1 Fall 2012
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
1) Parking at a university has become a problem. University administrators are interested in
determi
FINAL EXAM REVIEW
STATISTICS
WHEN TO USE EACH TEST
REGRESSION:
CHECKS IF ONE VARIABLE INFLUENCES, PREDICTS, OR IS RELATED TO THE
OTHER VARIABLE.
TWO-SIDED T TEST
COMPARES TWO AVERAGES TO SEE IF THERE IS A DIFFERENCE.
ONE-SIDED T TEST
COMPARES TWO AV
Lecture 24
Lecture 24: Histograms
Skewed to the left.
Due to the fact the left side is
longer than the right side
Bell shaped
Bell shaped. One peak.
Symmetrical as left side is
equal to the right side
Skewed to the right. Right side
longer.
Double Bell sh
Exam 3 review questions
In what follows use any of the following tests/procedures: Regression, multiple regression, confidence
intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95%
confidence interval. S
Tornadoes and Deaths by Year and Month (1950-1994)
Year Total Tornadoes Tornadoes by Month Total Deaths Deaths by Month
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
1950 201 7 20 21 15 61 28 23
ttest
ttest is used to test whether the averages of two groups of data are significantly
different or whether one specific average of one data is significantly
higher/lower than the other.
You use the formula: =ttest (array 1, array 2, 2,3) where array 1
Homework Final Exam Review.
Intermediate Stats Lab
Serfass
For all problems:
If you are performing correlation, perform regression also.
If you are performing a 2 way ANOVA, list all Hypothesis.
If you are performing a One-way ANOVA, use both ANOVA pro
Introductory Statistics
STA 2023 Fall Term, 2012
Instructor: Dr. Susan Moosai
Office Hours: TBA
Office Location: SE 352
Office Phone: (561)-297-2237
STA 2023 CRN92839 Section 010
E-mail: [email protected]
Classroom: Tues, Thurs GS 120
Lab: Mon SE 340/350
GO
Frequently Asked Questions STA 2023
On my class schedule, it states that we meet 2 times per week. Is this correct?
No. You are enrolled in what we call Introductory Statistics 2 + 2. It has very fast paced
lectures for 2 hours a week and then a requireme
TENTATIVE COURSE OUTLINE FALL 2012 REVISED!
These topics are subject to change, and will be announced in lectures only.
LECTURES ARE IN DESIGNATED CLASSROOMS AS PER YOUR CLASS SCHEDULE LABS/
EXAMS ARE IN SE 340/350
Dates
Lectures/Labs
8/20 Introduction Re