Review Chap 10
Name_
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
The null and alternative hypotheses are given. Determine whether the hypothe
Name _
Elementary Statistical Methods
Lab 3
Suppose you are the manager of Speedy Oil Change which claims that it will change the oil in
customers cars in less than 30 minutes on average. Further supp
MATH 1342
Elementary Statistical Methods
Name _
Critical Thinking; Communication Skills; Empirical/Quantitative Skills
Lab 2 Show your work as possible
The following is the number of each color of M&M
Review on Chapter 1 and 2
Name_
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Use critical thinking to determine whether the sampling method appear
Review Chapter 3
Name_
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Find the mean for the given sample data. Unless indicated otherwise, round
EPPS 2302
Statistics
I.
Week 1 Aug. 2017
Statistics
Describes a set of tools and techniques that is used for describing,
organizing, and interpreting data.
Branch of math that transforms numbers int
.
Problem Set 2
1) In 2013 there were 32,719 traffic fatalities in the United States. Of these,
10,076 were alcohol related.
a.
What is the probability that a randomly selected fatality in 2013 was al
Important R Commands
lnstall.packages(name of package)
Installs new packages
library(name of package)
Loads package for use
read.csv(name of file.csv, header=T)
Imports csv data file
read.dta(name of
Problem Set 2
Due in class 10/05/17
1) In 2013 there were 32,719 traffic fatalities in the United States. Of these, 10,076 were
alcohol related.
a. What is the probability that a randomly selected fat
Dix 1
Alysha Dix
Prof. D. Jonaitis
Math-2342-81090
6 September 2016
Project 1
My article that I chose is entitled Beating also cause traumatic brain injuries.
Throughout this article a woman named Sus
1. The value given below is discrete. Use the continuity correction and describe the region of the normal
distribution that corresponds to the indicated probability.
Probability of exactly 3 passenger
Ch. 5 Homework (13 problems)
1.
a) Continuous random variable
b) Continuous random variable
c) Not a random variable
d) Continuous random variable
e) Continuous random variable
f) Continuous random va
1. A margin of error of 100 points seems too high to provide a good estimate of the mean score
Z alpha/2=1.96
2. Find the critical value z Subscript alpha divided by 2 z/2 that corresponds to alpha=0.
Ch.6.2 & 6.3 HW
1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard
deviation 1.
The indicated z score is 2.16
2. Assume that a randomly selected
1. Using the simple random sample of weights of women from a data set, we obtain these
sample statistics: n=40 and x overbar=145.02 lb. Research from other sources suggests
that the population of weig
Stats: Correlation & Regression
Definitions
Coefficient of Determination
The percent of the variation that can be explained by the regression equation
Correlation
A method used to determine if a relat
Stats: Counting Techniques
Definitions
Factorial
A positive integer factorial is the product of each natural number up to and
including the integer.
Permutation
An arrangement of objects in a specific
Statistics: Data Description
Definitions
Statistic
Characteristic or measure obtained from a sample
Parameter
Characteristic or measure obtained from a population
Mean
Sum of all the values divided by
Stats: Estimation
Definitions
Confidence Interval
An interval estimate with a specific level of confidence
Confidence Level
The percent of the time the true mean will lie in the interval estimate give
Statistics: Frequency Distributions & Graphs
Definitions
Raw Data
Data collected in original form.
Frequency
The number of times a certain value or class of values occurs.
Frequency Distribution
The o
Stats: Hypothesis Testing
Definitions
Null Hypothesis ( H0 )
Statement of zero or no change. If the original claim includes equality (<=, =, or
>=), it is the null hypothesis. If the original claim do
Stats: Normal Distribution
Definitions
Central Limit Theorem
Theorem which stats as the sample size increases, the sampling distribution of
the sample means will become approximately normally distribu
Stats: Probability Distributions
Definitions
Random Variable
Variable whose values are determined by chance
Probability Distribution
The values a random variable can assume and the corresponding proba