Updated Fall 2011
Intro to Stats, Test 2 Review
Solutions in Red Below
Section A: Which Test to Run?
For each of the following research scenarios, select the appropriate statistical test.
1. Researchers are wondering if hypertension and smoking are relate
Intro to Stats, Test 1
R. Sinn, Spring 2007
Student Solutions & Points Scoring Guide
Test is out of 90 Points Total
Directions
Answer each question in full. In some cases in statistics, more than one answer may be counted correct. Please
justify your sta
Updated Fall 2011
Intro to Stats, Test 2 Review
Name _
Section A: Which Test to Run?
For each of the following research scenarios, select the appropriate statistical test.
1. Researchers are wondering if hypertension and smoking are related. They divide t
Updated Fall 2013
Which t-Procedure Should I Run?
Stats (2400), R. Sinn
Name _
Directions: For each situation, decide upon the correct t-procedure.
1. Researchers use a test called the MLA to determine the foreign language skills of non-native speakers. A
Intro to Stats, Test 1
R. Sinn, Spring 2007
Name _
Test is out of 90 Points Total
Directions
Answer each question in full. In some cases in statistics, more than one answer may be counted correct. Please
justify your statements if in doubt.
You may use
Stats Survey Data Population Proportion Z-Procedures
North Georgia Mathematics
Directions: Complete the correct z-procedure for each set of observed data below, and test the
hypothesis or estimate the mean.
1. Optimism. A recent survey at UNG presented st
Stats Survey Data t-Tests
North Georgia Mathematics
Directions: Complete the correct t-procedure for each set of observed data below.
1. For the past several semesters, the population TXREL scores for North Georgia students has
been esatblished: the distr
Stats Survey Data t-Tests
North Georgia Mathematics (Fall 2013 Data)
Directions: Complete the correct t-procedure for each set of observed data below.
Female Male
s
s
26.65
30.11
AV
G
SD 5.32
6.17
N 100
63
1. Whose Relationship Beliefs are more Toxic? A r
Stats Survey Data Population Proportion Z-Procedures
North Georgia Mathematics
Directions: Complete the correct z-procedure for each set of observed data below.
1. Type A gender difference? A recent survey tested for Type A personalities among 202
undergr
Math 2400
Test 1 Review Guide
Multiple Choice Portion
Name_
Choose the best answer for each multiple choice question and record your answer on the
Scantron sheet provided.
The base retail prices of all 2008 models of Chevrolet are shown in the stem plot b
Checking for Linear Regression:
Where:
y=ax+b
r=correlation coefficient
r2=coefficient determination
Test located on calculator under (Stat > Calc > 4)
1) Analyze the strength of correlation
a. Little to none - |r|<.25
b. Weak - .25<|r|<.5
c. Moderate - .
Displayingdatawithgraphs
BPS chapter 1
2006 W. H. Freeman and Company
Individualsandvariables
Individuals are the objects described by a set of data. Individuals may be
people, but they may also be animals or things.
Example:
Freshmen, 6-week-old babies,
Math 2400
Descriptive Statistics Project (v. A)
Due Date _
General Instructions: All answers should be in full sentences. Answers that are not
sufficiently justified or explained will not be given full credit (see scoring rubric).
Directions, Exercise 1:
Taylor Pruitt and Brian Carpenter
Spence
Stats Project 2
Comparing Stress of Men and Women
We wanted to study the levels of stress in two different groups of individuals and
compare them. The question was whether or not women are more stressed than men. T
Comparing Stress Levels of
Men and Women
Taylor Pruitt
Brian Carpenter
Research Question
We wanted to study the levels of
stress in two different groups of
individuals and compare them.
The question was whether or not
women are more stressed than men.
Rat