MATH 131
TEST 4 REVIEW SHEET
9/16
Important terms and phrases: To locate these terms in the book, please use the index at the
back of the book.
Critical values (c.v.)
t-distribution
Degrees of freedom
Test statistic
P-value method for hypothesis testing
o
9/16
MATH 131
Formulas for Test 4
Testing Hypothesis:
=
Chi-Square:
=
2
=
( )
Goodness of Fit Test
= where n is the number of trials (the sample size)
and is the assumed probability of the ith category.
d.f. = k 1
Test for Independence (Contingency Tabl
MATH 131
TEST 2 REVIEW SHEET
8/16
Important terms and phrases: To locate these terms in the book, please use the index at the back
of the book.
Sample Space
Classical Probability
Empirical Probability
Law of Large Numbers
Empirical Rule
Chebychevs Theorem
MATH 131
Lab 7
8/16
The goal of this lab is to test the linear correlation between the two Quantitative Variables from
Lab 1; to find the equation of the regression line for the variables; and to use the line for prediction.
Important Note: The interpreta
Jahimere Hinton
Lab 7
1. See other attachment
2. Looks like moderate negative correlation but more of no correlation- as protein increases then
decreases, carbs increases then decreases. Would say that r is close to 0.5+.
3. R= 0.186
4. Ho= RHo= 0 Ha=RHo
Jahimere Hinton
Lab 1
1. Your general idea: I am a psychology major who plans on changing my major to
exercise science to learn more on nutrition and specifically protein and
carbohydrates in the most important and most common meal of the day, cereal.
2.
MATH 131
Lab 3
8/16
The goal of this lab is to find descriptive statistics for your quantitative data.
Part 1: V2, Quantitative Data
(3 points)
Use the list of all 40 numbers from Lab 1, column V2 for this part of the lab.
Protein
A. Identify the name of
Math 131
1.
Test 3 Review
A package of frozen vegetables has a label that says contents 32 oz. However, the company that produces these packages
knows that the weights are normally distributed with mean 32 oz. and standard deviation 2 oz. If a package is
MATH 131
TEST 3 REVIEW SHEET
8/16
Important terms and phrases: To locate these terms in the book, please use the index at the back
of the book.
Normal Distribution
Standard Normal Distribution
Standard Error of the mean
Central Limit Theorem
E, Margin of
MATH 131
TEST 2 REVIEW SHEET
8/16
Important terms and phrases: To locate these terms in the
book, please use the index at the back of the book.
Sample Space
Probability Experiment:
Roll a six-sided die.
Mutually Exclusive Events
Sample Space: cfw_1, 2, 3,
MATH 131 Unit 2
Class Activity 1
8/16
Data from the World Health Organization represents countries in terms of poverty and life
expectancy in the following table.
Percentage of Country Living in Poverty
Divided at 30% of country in poverty
Life Expectancy
MATH 131 Unit 1
Class Activity
8/16
Standard Deviation
1. A sample of 5 adults was asked how many times a week they usually eat out. The answers are
listed here: 2, 1, 4, 5, 3. Find the standard deviation for this data set by using the formula
. Be sure t
Grouped Problem from Unit 1 Review Packet
* First put items in order by selling price (Lowest to Highest or Hig
X
f
Product
Selling # Units
(x - 1.49)
Sold
Price
Sold
Fx
(x - x)
Soft Drinks
$ 1.00
975 $
975.00 $ (0.49)
Ice Cream
$ 1.25
235 $
293.75 $ (0.2
Rebecca McCormack
Project 2
2.
A. The function that describes the height of Joans basketball, in
terms of time measured in seconds is s(t)= -16t2 +20t+120. The height
function is a downwards parabola because the basketball is being thrown
up and then fall
MATH 131 Unit 3
Class Activity
08/16
1. If you make just one 90% confidence interval will it necessarily capture the population value
you are estimating? _
2. If you make ten different 90% confidence intervals, how many of them do you think will
capture t
MATH 131 Unit 4
Class Activity 1
08/16
Hypothesis Testing on the Mean
1. Make a claim about the mean number of texts college students send on a typical day.
You may use the phrase more than, at least, at most, less than, equal, etc.
The average number of
MATH 131 Unit 4
Class Activity 2
08/16
Chi-Square Test for Goodness of Fit Part 1
According to Mars, Inc. the distribution of colors in a bag of M&M Plain was 13% brown, 14% yellow,
13% red, 20% orange, 16% green and 24% blue. Peanut was 12% brown, 15% ye
MATH 131 Unit 2
Class Activity 2
8/16
Expected value is an important concept to consider when calculating premiums for insurance.
The insurance company will assign probabilities to the possible outcomes for the group based
on research data. The company wi
MATH 131
Lab 1
8/2016
Statistical studies are done routinely in our society to find important information about medical issues,
to discover interesting facts about political situations, and to test opinions about educational ideas.
As part of the course r
MATH 131 Unit 4
Class Activity 3
08/16
Chi-Square Test for Independence
Global Health Data from Brookdales International Center
Countrys Sanitation Status
Percent of Country with Improved Sanitation Facilities divided at 67%
Infant Mortality Rate
Divided
Chelsea Atkinson MATH 131 Unit 2
Class Activity 2
8/16
Expected value is an important concept to consider when calculating premiums for insurance.
The insurance company will assign probabilities to the possible outcomes for the group based
on research dat
Hailey Gilboy
Lab 1
1. The interesting question I am trying to answer is the total enrollment and
acceptance rates based on the regions of the top 75 colleges in the United
States.
2. I have identified 75 universities across the United States, classifying
Hailey Gilboy
Math 131
October 13th, 2015
Part 1:
Values for qualitative
data
ANCC
Frequency
Relative Frequency
6
.150
CMCN
3
.075
OTHER
31
.775
Nursing Certifications
ANCC; 15%
CMCN; 8%
OTHER; 78%
Frequency vs. Values of Qualitative Data
Hailey Gilboy
Ma
College Name
United States
Military Academy
Columbia
Wesleyan
University
Wellesley College
Colby College
Hamilton College
Princeton
University
Claremont
McKenna College
Lehigh University
University Of
California, Los
Angeles
Union College
Washington
Unive