Hypothesis Testing
Sections 8-2, 8-4 and 8-5
Setting up Hypotheses
A Statistical Hypothesis is a conjecture about a population parameter
or parameters.
A testing situation usually consists of two oppo
Exam
Name_
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the
question.
1) Which of the following is the properly rounded mean for the given data?
7, 8, 13, 9
8.2-1 EE Question Help
An entomologist writes an article in a scientic journal which claims that fewer than 22 in ten thousand male reies are unable to produce light due to a genetic mutation.
Use th
MATH 2000 Notes (Section 5.2)
Section 5.2 Objectives:
Determine whether a potential probability distribution is valid
Given a valid probability distribution, calculate the mean, variance and standar
Quiz2Probability
withCards
1. Suppose S cfw_a, b, c isthesample
space
foraprobabilityexperiment.Statewhether
or
notthefollowing
probabilityassignmentisvalid.Ifitisvalid,statewhyandifitisnotvalid
state
1.
2.
Quiz on Confidence Intervals - A
Name: _
Find the critical Z-value if the confidence level is 95%
In a survey of 1200 Americans, 700 gave a favorable view of the president.
a. Find the proportio
MATH 2000 Elementary Statistics
Fall 2014
Lesson 2 a for Week 2
1.
Frequency distributions
2.
A simple frequency distribution: Final Letter grades for a
STATS class.
B
A
A
C
A
B
B
C
D
C
C
B
B
C
F
D
C
MATH 2000 Elementary Statistics
Fall 2014
Lesson Plan Week 8 Estimation
1. Attendance
2. Introduction to Estimation
a. The distance from Atlanta to Charlotte, NC, is 220 miles give or
take. What is gi
Elementary Statistics - Exam 1
Review-Answers
Use the following stem and leaf data on the exam 1 scores in an economics
class to answer questions 1 through 6.
3 |2 3
4|457799
5|22355
6|445
7 | 234
8 |
MATH 2000 - Introductory Statistics -Test 3 Review
Fall 2014
1. You are given the interval (5, 28). Find the midpoint, half the
width, and put the interval in the form ab. 16.511.5
2. Find the critica
1. Do iPhone users choose service plans from the 3 main
providers in equal proportions? A survey of 150 iPhone
users yielded the following results:
AT & T
Verizon
Sprint
60
51
39
Which h
MSIT 3000
Chapter 9
Section 9.1: Simulations
To learn more about the variability, we have to
imagine. We probably will never know the
value of the true proportion of an event in the
population. But it
Chapter 10 Testing Hypotheses about Proportions
8-green
1-white
1-red
A study was done to see if bank executives
were more inclined to promote males than
females. Forty-eight randomly chosen bank
exec
Section 3.3 Populations and Parameters
Population the entire collection of individuals or
instances about which information is sought.
Sample a subset of a population, examined in hope of
learning abo
Chapter 11 Confidence Intervals and Hypothesis Tests for Means
Section 11.1 Sampling Distributions for Means
What other distributions have we talked
about? How do we describe distributions?
Previously
Stat.
Homework 22
3,077.4 + -251.58 + -1416
2,948.2 + 25(-9.9) + 73(-24.12)
-8.67 +/- 2.0518( 4.103)
-8.67 +/- 8.4185354
-0.2514646
-17.0885354
(a) Only Traps has P-value < = 0.05, so this is the only
Estimating the population mean,
An estimator or statistic of a population parameter is a formula designed to
give an educated guess of the parameter and whose value depends on a sample
presumably tak
Tran Doan
Stat2000-section 13
Question: Where do people spend more money per month on nails, in an independent nail salon
(King Nails) or in a franchised one (Regal Nail)?
King Nails
Person
1
2
3
4
5
Calculating and Reporting Healthcare
Statistics, Fifth Edition
Chapter 4: Percentage of
Occupancy
2016
Inpatient Bed Count
Healthcare facilities are licensed by
individual states to operate with a s
TentativeScheduleforMath2000StatisticsSpring2017
Week1:
Jan913
Week2:
Jan1620
Week3:
Jan23Jan27
Week4:
Jan 30-Feb3
Week5:
Feb 6-Feb 10
Week6:
Feb 13-Feb17
Week7:
Feb 20-24
Week8:
Feb 27-Mar3
Mar 6-Mar
Confidence Intervals
Read Sections 7.2 and 7.3 then answer the following questions. This assignment is due on
Thursday, June 16th at the beginning of class.
1. Define a point estimate. The sample prop
STATISTICS FOR SOCIAL & BEHAVIORAL SCIENCES
ANSWER KEY FOR ONLINE QUIZ 2
Answers
Remark: The green check sign appears right before the right answer.
Question 1 of 21
In a sample of pensioners, with 10
@ 5.2.7 EE Question Help
Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the ve who inherit the genetic disorder.
Determine whe
5.3-1 E5 Question Help
In one region. the September energy consumption levels for singlefamily homes are found to be normally distributed with a mean of 1,050 kWh and a standard
deviation of218 kWh. F
@ 7.3.5 55 Question Help
Do one of the followingI as appropriate. (a) Find the oritical value 2M2. (b) nd the oritioal value tum. (c) state that neither the normal nor the tdistribution applies.
Conde
@ 3.2-4 55 Question Help
The students in Hugh Logan's math class took the Scholastic Aptitude Test. Their math scores are shown below. Find the mean score. Round your answer to one
more decimal place
MATH 2000 Homework 1 (Due Tuesday, June 6, 2017, 11:59pm. Please
post to the assignment section of D2L)
1) Suppose that you randomly selected 50 students at GGC and collected
data on the following fiv
Name: Cheyenne Campbell
Math 2000
Lab 2
Measures of Variation, Relative Standing, Linear Correlation & Regression
Type all solutions and responses within the solution box. Explanations should be in co
Name: Cheyenne Campbell
Math 2000 Statistics
Lab I Frequency Distributions, Histograms, and Measures of Center
Copy and paste tables or graphs from StatCrunch where needed. When answering questions th