# QNT561 Statistical Report

*label*Mathematics

*timer*Asked: Feb 4th, 2019

*account_balance_wallet*$50

### Question Description

This signature assignment is designed to align with specific program student learning outcome(s) in your program. Program Student Learning Outcomes are broad statements that describe what students should know and be able to do upon completion of their degree. The signature assignments might be graded with an automated rubric that allows the University to collect data that can be aggregated across a location or college/school and used for program improvements.

**Purpose of Assignment**** **

The purpose of this assignment is for students to synthesize the concepts learned throughout the course. This assignment will provide students an opportunity to build critical thinking skills, develop businesses and organizations, and solve problems requiring data by compiling all pertinent information into one report.

**Assignment Steps**

**Resources: **Microsoft Excel^{®}, Signature Assignment Databases, Signature Assignment Options, Part 3: Inferential Statistics

**Scenario: **Upon successful completion of the MBA program, say you work in the analytics department for a consulting company. Your assignment is to analyze one of the following databases:

- Manufacturing
- Hospital
- Consumer Food
- Financial

**Select** one of the databases based on the information in the Signature Assignment Options.

**Provide** a 1,600-word detailed, statistical report including the following:

- Explain the context of the case
- Provide a research foundation for the topic
- Present graphs
- Explain outliers
- Prepare calculations
- Conduct hypotheses tests
- Discuss inferences you have made from the results

This assignment is broken down into four parts:

- Part 1 - Preliminary Analysis
- Part 2 - Examination of Descriptive Statistics
- Part 3 - Examination of Inferential Statistics
- Part 4 - Conclusion/Recommendations

Part 1 - Preliminary Analysis (3-4 paragraphs)

Generally, as a statistics consultant, you will be given a problem and data. At times, you may have to gather additional data. For this assignment, assume all the data is already gathered for you.

**State** the objective:

- What are the questions you are trying to address?

**Describe** the population in the study clearly and in sufficient detail:

- What is the sample?

**Discuss** the types of data and variables:

- Are the data quantitative or qualitative?
- What are levels of measurement for the data?

Part 2 - Descriptive Statistics (3-4 paragraphs)

**Examine** the given data.

**Present** the descriptive statistics (mean, median, mode, range, standard deviation, variance, CV, and five-number summary).

**Identify** any outliers in the data.

**Present** any graphs or charts you think are appropriate for the data.

*Note:* Ideally, we want to assess the conditions of normality too. However, for the purpose of this exercise, assume data is drawn from normal populations.

Part 3 - Inferential Statistics (2-3 paragraphs)

**Use** the Part 3: Inferential Statistics document.

- Create (formulate) hypotheses
- Run formal hypothesis tests
- Make decisions. Your decisions should be stated in non-technical terms.

*Hint*: A final conclusion saying "reject the null hypothesis" by itself without explanation is basically worthless to those who hired you. Similarly, stating the conclusion is false or rejected is not sufficient.

Part 4 - Conclusion and Recommendations (1-2 paragraphs)

**Include** the following:

- What are your conclusions?
- What do you infer from the statistical analysis?
- State the interpretations in non-technical terms. What information might lead to a different conclusion?
- Are there any variables missing?
- What additional information would be valuable to help draw a more certain conclusion?

**Format** your assignment consistent with APA format.

## Tutor Answer

See attached:)

Running head: STATISTICAL REPORT

1

Statistical report

Name

Institution

Date

STATISTICAL REPORT

2

A. Preliminary analysis

The report provides statistical evaluation of the manufacturing industries in the United States as

contained in the manufacturing database. The database comprises data from various

manufacturers including the food products, textile mill products, chemicals, transportation

equipment, industrial machinery, furniture, primary metals, and rubber products. The report tries

to answer the research questions below;

a. Is the typical number of industry employees lower than 150?

b. Is there a statistically substantial difference between the average value added by a

Manufacturer and the average cost of materials for the manufacturers?

c. Is the variance for the cost of materials substantially bigger than the variance of the data

points of End of Year Inventory?

Sample

Notably, the report draws from a data sample of 140 records obtained randomly from 20

different industry groups in the US. The data is assembled into 6 variables comprising of the

number of production workers, the cost of materials, the number of employees, the industry

group, the value added by the manufacturers, and the end year inventory. The values for the cost

of materials, the value added by the manufacturers, and the end year inventory are expressed in

million dollars. On the other hand, the number of employees and the production workers are

expressed in thousands. The data set contains 20 industry group represented by values from 1 to

20.

Data types

STATISTICAL REPORT

3

The database embodies qualitative and quantitative variables. The number of employees,

the number of production workers, the end year inventory, the cost of materials, and the value

added by the manufacturers per industry are all quantitative variables which can be subjected

through mathematical manipulation whilst the industry group is merely categorical in nature and

as such, it is a qualitative variable.

Levels of measurements

The data variables for the manufacturing database e...

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