This website uses cookies to ensure you have the best experience. Learn more

Topic Wise Essay

2310 words - 10 pages

One-Sample Tests of
Hypothesis

LEARNING OBJECTIVES
1 Define a hypothesis.
2 Explain the five-step hypothesis-testing procedure.
3 Define Type I and Type II errors.
4 Define the term test statistic and explain how it is used.
5 Distinguish between a one-tailed and a two-tailed hypothesis.
6 Conduct a test of hypothesis about a population mean.
7 Compute and interpret a p-value.
8 Conduct a test of hypothesis about a population proportion.

10-2

Define a hypothesis.
Explain the five-step hypothesis-testing procedure.

Hypothesis and Hypothesis Testing
HYPOTHESIS A statement about the value of a population parameter
developed for the purpose of testing.
HYPOTHESIS ...view middle of the document...

This is denoted by the Greek
letter .
Also known as the significance
level of a test.

Type II Error

Defined as the probability of
failing to reject the null
hypothesis when it is actually
false.
This is denoted by the Greek
letter β.
10-6

Define the term test statistics and explain how it is used.

Test Statistic versus Critical Value
TEST STATISTIC A value, determined from sample
information, used to determine whether to reject the null
hypothesis.
Example: z, t, F, 2
CRITICAL VALUE The dividing point between the region
where the null hypothesis is rejected and the region where it
is not rejected.

10-7

Distinguish between a one-tailed and two-tailed hypothesis.

One-tailed vs. Two-tailed Test
One-tailed or Left-tailed Test

Two-tailed or Non-directional Test

One-tailed or Right-tailed Test

10-8

How to Set Up a Claim as Hypothesis

In actual practice, the status
quo is set up as H0.
“Boastful” claim is set up as
H1 (we apply the Missouri
rule – “show me”).
Look for keywords and
convert them into symbols.
Some keywords include:
“improved, better than, as
effective as, different from,
has changed, etc.”

Keywords

Inequality
Part of
Symbol

Larger (or more) than

>

H1

Smaller (or less)

<

H1

No more than

H0

At least

H0

Has increased

>

H1

Is there difference?

H1

Has not changed

=

H0

Has “improved,” “is
better than,” “is more
effective”

See left
text

H1

10-9

Conduct a test of hypothesis about a population mean.

Hypothesis Setups for
Testing a Mean ()

10-10

Testing for a Population Mean with a
Known Population Standard Deviation — Example
Jamestown Steel Company
manufactures and assembles
desks and other office
equipment. The weekly
production of the Model A325
desk at the Fredonia Plant
follows the normal probability
distribution with a mean of 200
and a standard deviation of 16.
Recently, new production
methods have been introduced
and new employees hired. The
VP of manufacturing would like
to investigate whether there
has been a change in the weekly
production of the Model A325
desk.

A sample from last year’s weekly
production yielded a mean number
of desks produced of 203.5. Test
using 0.01 significance level.
10-11

Testing for a Population Mean with a
Known Population Standard Deviation – Example
Step 1: State the null hypothesis and the alternate hypothesis.

H0:  = 200
H1:  ≠ 200

(note: keyword in the problem “has changed”)
Step 2: Select the level of significance.
α = 0.01 as stated in the problem.
Step 3: Select the test statistic.
Use z-distribution since σ is known.
10-12

Testing for a Population Mean with a
Known Population Standard Deviation – Example

Step 3: Select the test statistic.
Use z-distribution since σ is known.

10-13

Testing for a Population Mean with a
Known Population Standard...

Other Papers Like Topic Wise

Research Methodology Research and Design Essay

1825 words - 8 pages Assignment after class 6 Research design and research strategies: overview and distinctive features 2. Problem of safety on construction sites For the safety on construction sites: The degree to which the research question has been crystallized: Exploratory study. It is just a study to gain insights on the topic. The method of data-collection: Monitoring or interrogation/communication, It really depends on how they want to approach the

An Educator's Responsibility Essay

534 words - 3 pages curriculum. For example if a student brings up the topic about whether or not someone should receive the death penalty, the teacher should not agree or disagree. A teacher should inform the student that they can understand both sides of the situation and say that the court system would make that determination. It is a wise response that does not embarrass the student and the teacher is not stating her own personal opinions about the topic

Social Identity vs Personal Identity

2123 words - 9 pages Kevin Carrera LSP 200 3/15/11 Social Identity Vs Personal Identity In this paper I will discuss the differences and similarities between the two using three texts from June Jordan, Tim Wise, and Avery Gordon as well as give you my personal opinion about the topic. Social identity, in my opinion, is a bad thing as a whole because it doesn't take into account the experiences that any one person has, it just lumps them together. There are

Limitations

930 words - 4 pages NOTE 1: It is required that you submit this paper to your Writing Coach prior to your submission for grading. See highlighted information below. Write a short essay that identifies what you believe to e the most critical issue facing executive leadership today. This topic is for you to choose (it will not be provided to you). Why is this moral issue more critical than any other of the many issues facing top leaders? List a minimum potential

Bibl 105 Essay 2

803 words - 4 pages The Bible talks a lot about the teachings of Hebrews wisdom on diligence and laziness. An example is Solomon’s teachings on wisdom and diligence with contrast between wisdom and folly. This topic is mostly found in the books of Proverbs where the Proverbs are mostly sharing wisdom. Solomon whom authored Proverbs and was well known for the gift he received from God after being asked for anything he chose wisdom and that’s what he received

Nutrition Reflection

522 words - 3 pages Alexandra Holman Health 1070 Ms. Victoria Smith 3 December 2014 Nutrition, at first thought, inspires fantasies of apples, bananas, vitamin pills, and a person running down a grassy pathway in the prime of life fitness wise. But the subject incorporates so much more than simply eating healthy or working out, as is often pictured. It is about how our bodies function, each internal process, how what we eat affects our health, and the

The Alchemist

981 words - 4 pages your dreams. The Alchemist outlines the adventures of Santiago, as young shepherd, as he travels from his homeland in Spain to Egypt in search of a treasure that appears in his dreams. During this journey he meets many people such as a wise king, a merchant in fear to live out his dreams, his true love and the Alchemist. On the way to the pyramids, he comes across numerous difficulties and temptations but moves on undeterred to fulfill his

Global Warming

1706 words - 7 pages approaches to scientific research. The findings chapter will present what you found out in the course of your research, including a discussion of the findings as is found relevant to the existing literature. A conclusion recaps the main findings and how your objectives were addressed, limitations, and areas for future research. Basically, PhD students commence the exercise of dissertation writing by presentation of a dissertation research topic

Connais transitions

743 words - 3 pages for a long time like new furniture and fix up that car that you already had or buying a nice decent priced used or new car that you can afford with your monthly income. All and all it not wise to blow all the money that you made on deployment and try to save up for when you get out so your not broke and can't afford to house or feed yourself and your wife and kid if you have any of them. Another topic of this not to greet then new marines

Competencies Assessment

833 words - 4 pages concepts can be very helpful when it comes to the impact that things health wise can have on the human population. When it comes to statistic the number can be manipulated pretty easily to portray whatever picture that people want. That does not mean is what is always being done, but I think is a large reason why as a class we generally find a low importance on it. For example, drug companies do a great job using statistics to show how great their

Public Speaking

1096 words - 5 pages bring the audience in closer. The second speech was a lot harder topic wise. I had chosen LSD (acid) which required a lot of research. Also while writing the outline for my speech and thinking of how I would go about informing the audience, I kept on having to remind myself to stray away from being persuasive. While reviewing the recording of this speech I realized what not practicing your speech out loud before and not timing it before can

Related Essays

Thesis Chapter 2 Essay

1019 words - 5 pages results immediately in various forms -- the general mark list, the detailed general mark list where the marks obtained by the student in each topic of the subject is shown (red underline for below passing marks) as well as the answer sheet of each student. The trends graph show the graph of how many students have passed in each topic of a particular subject (Topic wise comparison graph) as well as how many students have passed in each subject

Bhagavad Gita Vs Fear And Trembling

991 words - 4 pages Vanessa Fontana REL 353 The Clashing of Two Worlds Paper Topic 2: #1 Abraham, led by faith, was commanded by God to sacrifice his son Isaac. Along the way he experiences despair, but he quickly renounces it so that he is able to make the movement of infinite resignation. Throughout his journey, he exudes the traits of a wise man through his powerlessness thereby regaining his happiness tenfold. Arjuna, struggles with his own path in

Fin 315 Exam Essay

5030 words - 21 pages Personal Finance: Turning Money into Wealth, 6e (Keown) Chapter 1 The Financial Planning Process 1.1 Facing Financial Challenges 1) Once a sound financial plan is in place, there should be no need to ever change it. Answer: FALSE Diff: 1 Topic: The Financial Planning Process AACSB: 3. Analytical skills 2) When comparing two different investment opportunities the investor should always choose the investment that minimizes the

Sndwich Blitz Unit 8 Assignment

837 words - 4 pages continue to improve my academic effectiveness by strengthening my learning skills. I think it is wise to always plan and prepare to continue to learn. Tutorials are a great educational source that are readily available. Practically any topic of a tutorial can found on the internet. There are generally easy to follow and very informative. Another option is to attend seminars related one’s to interest or educational needs. I enjoy attending