Based on the statistical output, would you conclude that variances are equal or not equa

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

MBA 6350

Week 5 Case Study - Two-sample t-test in Excel (Case Study #3)

Case Study #3 is intended to test your knowledge of how to appropriately compare two means.

The data file has 50 randomly selected student debt amounts from 2018 and 50 randomly selected student debt amounts from 2013. The data fields included are as follows:

 Debt in 2018 (dollars)

 Debt in 2013 (dollars)

A university representative wants to know whether the sample data provide enough evidence to believe there is a difference between the debt amounts in the two years. The null and alternative hypotheses are shown below.

 Null Hypothesis: Mean Student Debt in 2018 is equal to Mean Student Debt in 2013

 Alternative Hypothesis: Mean Student Debt in 2018 is not equal to Mean Student Debt in 2013

Complete the following tasks:

1. Run an F-test for two sample variances using an alpha level of 0.05 and answer the following questions:

a. Which of the two years has the higher mean? What are the values?

b. Which of the two years has the higher variance? What are the values?

c. Based on the statistical output, would you conclude that variances are equal or not equal? Provide an appropriate/authoritative explanation leveraging the statistical output.

2. Run an appropriate t-test (assuming either equal or unequal variances based on your conclusion in 1c above) using an alpha level of 0.05 and answer the following questions:

a. Is this a one-tailed or two-tailed test? Provide an appropriate/authoritative explanation that fully explains the choice.

b. Based on the statistical output, would you conclude that means are equal or not equal? Provide an appropriate/authoritative explanation leveraging the statistical output.

c. Using everyday language that could be understood by parents and students, what does the analysis say about student debt in 2018 versus 2013? Provide an appropriate/authoritative explanation leveraging the statistical output (e.g., use confidence level, rationale, etc.)

Make sure that you run all the required analyses using the Data Analysis Toolpak in Excel and SUBMIT the Data Analysis Output along with the Data file in a Single Excel workbook that shows all your output. You should also submit a separate Word document that fully, and professionally, responds to each question.

Attachments:

Related Questions

. The fundamental operations of create, read, update, and delete (CRUD) in either Python or Java

CS 340 Milestone One Guidelines and Rubric  Overview: For this assignment, you will implement the fundamental operations of create, read, update,

. Develop a program to emulate a purchase transaction at a retail store. This  program will have two classes, a LineItem class and a Transaction class

Retail Transaction Programming Project  Project Requirements:  Develop a program to emulate a purchase transaction at a retail store. This

. The following program contains five errors. Identify the errors and fix them

7COM1028   Secure Systems Programming   Referral Coursework: Secure

. Accepts the following from a user: Item Name Item Quantity Item Price Allows the user to create a file to store the sales receipt contents

Create a GUI program that:Accepts the following from a user:Item NameItem QuantityItem PriceAllows the user to create a file to store the sales receip

. The final project will encompass developing a web service using a software stack and implementing an industry-standard interface. Regardless of whether you choose to pursue application development goals as a pure developer or as a software engineer

CS 340 Final Project Guidelines and Rubric  Overview The final project will encompass developing a web service using a software stack and impleme