Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

One sample hypothesis testing cases qnt 561

08/10/2021 Client: muhammad11 Deadline: 2 Day

QNT 561 Week 5 (800 Words Except Reference)

One Sample Hypothesis Testing Cases

Student’s Name

Institution Affiliation

Course

Course title

Date

Case Study – Election Results
Media platforms are important in that they help in shading light to people on any political elections being held. Exit polls are widely used by news media venues to conduct random sampling methods of data collection on the voters, whereby voters exiting the polling booths are asked on their opinions on their main preferred candidates whom they have voted for. It is from this information provided by the voters that a hypothesis test arises in order to determine whether the information given by the voters might provide clues on whom is expected to emerge as the winner in the voting process. (Black,2017). For this paper, will use the information on the elections held in the year 2000 between Democrat Al Gore and Republican George W. Bush. The voting process of this candidates would help us conduct a one-sample hypothesis in order to test and determine if the networks should announce at 8:01 P.M Republican candidate George W. Bush being the overall winner. Using 0.10 as the significance level (α). The polls close at 8:00 P.M. In a sample of 765 voters, 358 voters casted their votes to Al Gore while George W. Bush received 407 votes. Overall, the network gives the name of the possible winner if one of the candidates wins more than 50% of the votes.

The calculations to this is as follows:

The null hypothesis is H0: p = 0.50

Alternate hypothesis is H1: p > 0.50

Right tailed test means z test statistic =

Significance level α = 0.10.

The critical value at significance level 0.10 is calculated as 1.28

p0 = null hypothesis proportion = 0.5

x = George W. Bush 407

n = 765

Test statistic is calculated as: z = = 1.7716

normally the test statistic is distributed; thus, easy to determine the p-value as shown below:

Conclusion

In summary, due to the p-value being less than.10 it basically means that the result has fallen below the rejection region. The graph below helps in showing the manner in which the results have fallen in the rejection region as follows:

In addition, the results draw us to the hypothesis that George W. Bush possibly is going to get more than 50% of the total votes casted thus the announcements should be made by the network.

Case Study – Speed X
Speed X happens to be one of the largest courier company in the world today, its operations include a number of activities such as: reaching out to their customers by sending ready-made invoices as a way to request for payment from them within a span of 30 days. The invoices comprise of the specific addresses of this customers, customers are expected to use their received customized envelopes to make the expected payments. Mean and standard deviation are 24 days and 6 days respectively of the time taken by these customers to respond and pay their bills as required. The chief financial officer (CFO) has seen the need to have a self-addressed and stamped envelope representing the company as a way to help the company in improving its cash flow as a way to cover up the costs of stamps and envelopes as a result of decrease in the payment period by 2 days. (Black,2017) I selected randomly 220 customers where i decided to use the customized self-addressed and stamped envelopes with their respective invoices in order to determine how long the payment would take by their respective customers receiving the envelopes. The final information I received, helped me in conducting a one sample hypothesis test on the business in order to determine any possibilities of convincing the CFO to implement the plan as it would be of great importance and generate a lot of profits using a 0.10 and the significance level (α) as follows:

Null Hypothesis H0: µ = 30

Alternate hypothesis H1: µ < 30

Left-tailed test for single population mean

we can use z-test for hypothesis testing when the sample size is greater than 30.

At α = 0.10:

Descriptive statistics

Payment

Count

220

Mean

21.63

sample standard deviation

5.84

sample variance

34.05

minimum

9

maximum

39

Range

30

population variance

33.90

population standard deviation

5.82

standard error of the mean

0.39

confidence interval 90.% lower

20.98

confidence interval 90.% upper

22.28

margin of error

0.65

z

1.645

skewness

0.32

kurtosis

-0.23

coefficient of variation (CV)

26.98%

Conclusion

In conclusion, the information here shows no enough evidence to help in determining whether sending customized stamped envelopes or self-addressed envelopes helps in decreasing the payment duration by 2 days thus, at .10 significance level the null would not be rejected as follows:

In addition, the rejection region is the area left to the critical value -1.282. The shaded part is the rejection region thus the calculated test statistic does not fall under the shaded region.

References

Black, K. (2017). Business statistics for contemporary decision making (9th ed.). Hoboken, NJ: John Wiley & Sons, Inc.

0.4

0.3

0.2

0.1

0.0

Dashed line is the test statistic and shaded are is the critical region

D

e

n

s

i

t

y

1.282

0.1

0

1.772

Critical Region and the test statistic

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Top Class Results
Financial Hub
Assignments Hut
Coursework Assignment Help
WRITING LAND
Maths Master
Writer Writer Name Offer Chat
Top Class Results

ONLINE

Top Class Results

I am known as Unrivaled Quality, Written to Standard, providing Plagiarism-free woork, and Always on Time

$45 Chat With Writer
Financial Hub

ONLINE

Financial Hub

Give me a chance, i will do this with my best efforts

$28 Chat With Writer
Assignments Hut

ONLINE

Assignments Hut

I am known as Unrivaled Quality, Written to Standard, providing Plagiarism-free woork, and Always on Time

$33 Chat With Writer
Coursework Assignment Help

ONLINE

Coursework Assignment Help

I have read your project details. I can do this within your deadline.

$20 Chat With Writer
WRITING LAND

ONLINE

WRITING LAND

I have read your project details. I can do this within your deadline.

$40 Chat With Writer
Maths Master

ONLINE

Maths Master

Hello, I an ranked top 10 freelancers in academic and contents writing. I can write and updated your personal statement with great quality and free of plagiarism

$34 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Clinical decision support more than just alerts tipsheet - Titleist 735 cm value - Office manager job description - 2 1/6 as an improper fraction - Journal 15 - Colligative properties worksheet answers with work - Web security - Difference between eurobond and foreign bond - Huron company produces a commercial cleaning compound known as zoom - The farm angola usa summary - Ethical Decision Making - The sum of 1 9 2 3 and 5 18is - M30 hex nut dimensions - Divergence of a vector in cylindrical coordinates - Daniel liang introduction to java programming 11th edition pdf - Mechanistic vs organic organizational structure - Work from home EDITING - Discussion - Bank confirmation letter sample doc - Human body systems assignment - HSO Search And Proposal Idea - As 1554 part 1 - 78.1 kg in stone - Discussion - George baby face nelson - Sussex uni welcome week - A relation between momentum and kinetic energy - Wedding day at troldhaugen difficulty - Shiny rocks daycare stamford ct - Geomerty - Two compounds react to form two different compounds - Looking for Embroidered Custom Patches in the UK – Any Suggestions? - RACI Chart and Types of Costs Exercise - Burwood council clean up - Average rate of return tutor2u - An emission fee levied against polluters will tend to - The fob geography teacher - Need by thursday - Discussion - Writing assignment thank you note for nursing field - Icd 10 code for thyromegaly unspecified - Larson project management 7th edition access code - Case management information systems are especially beneficial for those with - Which of the following is true about using the various compositional modes for electronic media? - Heros journey structure - Week 3 quiz investments - A night in june by william wordsworth summary - Home energy audit student worksheet answers - Penn foster exam 700151 - Denied jesus three times - Straight outta compton scattering - W2PsychoPharmacol - Topcon x14 for sale - Continuous problem city of monroe - Physical activity enjoyment scale questionnaire pdf - The higher the correlation between the stocks in a portfolio - The trouble we re in privilege power and difference - What does ipde mean - In calculating gdp transfer payments are - Sa desert parks pass - Fate and free will macbeth - Wk 1, IOP 480: DR 2 - Steady state error example - The hut group c seko omni - How to solve integer word problems - FIN Questions - Spaceage furniture - Herbicide application record sheet - Project:network security 1 - Sam patch the famous jumper essay - Air force reenlistment afi - Module 4 - Case Assignment 3 - Justice: Varying Perspectives - Shadow health musculoskeletal interview guide - Kansas civil service jobs - Head coach job description basketball - Persuasive essay on eating breakfast - Etihad airways graduate scheme - Happy herb shop discount code - Ceramic resonator oscillator circuit - An ideal otto cycle has a compression - Maths genie surds answers - Full wave bridge rectifier using scr - Pioneer species mt st helens - The man in the black suit stephen king pdf - Nature org greenliving carbon calculator - Mortgagee letter 2012 18 - Knewton alta math answers - Chern's case study executive summary - Esri software authorization wizard - The norton introduction to literature online book - Cpt code for bleb revision - Tony quinn net worth - Help - What makes a job satisfying - Ap chemistry kinetics practice problems - Should executions be televised essay - Bill gates problem solving skills - Atc tower light signals - A person you dislike