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BUS 308 Entire Course

BUS 308 Week 1 DQ 1 Data Scales

Week 1

Data Scales.

A marketing agency is interested in the buying habits of those who shop online versus those who shop in person.

• BUS 308 Week 1 DQ 1 Language

• BUS 308 Week 1 DQ 2 Probability

• BUS 308 Week 1 Quiz

• BUS 308 Week 1 Problem Set

BUS 308 Week 1 DQ 1 Language

BUS 308 Week 1 DQ 2 Probability

Things vary in life – virtually nothing (except physical standards such as the speed of light) we interact with is constant over time.

• Discussion 1-1/Language

• Numbers and measurements are the language of business.

BUS 308 Week 1 Problem Set Week One

BUS 308 Week 1 Problem Set

1. For assistance with these calculations, see the Recommended Resources for Week One. Measurement issues.

• Problem Set Week One

• Problem 1

• The performances of a group of interns are evaluated by their supervisors at the end of their internships.

BUS 308 Week 1 Quiz (New)

BUS 308 Week 1 Quiz

1. Question : Data on the city from which members of a board of directors come represent interval data.

2. Question : Inferential statistics infer the characteristics of samples.

• 1. Question : In statistical notation, M is to μ as s is to σ.

• Question 2. Question : A parameter refers to a sample characteristic.

BUS 308 Week 2 DQ 1 Hypotheses

BUS 308 Week 2 DQ 1 t-Tests

-Tests

Imagine a shift manager at a manufacturing plant is gathering data on the number of units workers assemble during two different shifts over

• Discussion 2-1/Hypotheses

• What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population;

BUS 308 Week 2 DQ 2 ANOVA Testing

BUS 308 Week 2 DQ 2 Variation

Variation exists in virtually all parts of our lives.

We often see variation in results in what we spend (utility costs each month, food costs, business supplies, etc.).

• ANOVA Testing

• The manager of an agency providing temporary employees to city offices is analyzing the number of days temporary hires typically work in various types of industries.

BUS 308 Week 2 Journal

BUS 308 Week 2 Problem Set

Problem Set Week Two

Complete the problems below and submit your work in an Excel document. Be sure to show all of your work and clearly label all calculations.

• BUS 308 Week 2 Journal

BUS 308 Week 2 Quiz (New)

BUS 308 Week 2 Quiz

1. Question : How is the sum of squares unlike either the standard deviation or the variance?

2. Question : If sums of squares statistics are calculated for shoppers at three different retail

• 1. Question : What is the relationship between the power of a statistical test and decision errors?

• Question 2. Question : The desired sample depends on all of these factors except?

• Question 3. Question : What question does the z test answer?

BUS 308 Week 3 Assignment Evaluation of Correlations

BUS 308 Week 3 DQ 1 ANOVA

In many ways, comparing multiple sample means is simply an extension of what we covered last week.

Just as we had 3 versions of the t-test (1 sample, 2 sample (with and without equal variance), and paired;

• Evaluation of Correlations

• Data are gathered regarding the length of tenure top executives have at a major corporation and whether those executives have been divorced.

BUS 308 Week 3 DQ 1 Interval Data

BUS 308 Week 3 DQ 2 Correlation

Correlation

An employment agency gathers the following data on its clients:

a) Age

b) Gender

• Interval Data

• A courier service in a large city tracks the number of deliveries they are asked to make by 10 clients both before and after offering a progressive discount for repeat business.

BUS 308 Week 3 DQ 2 Effect Size

BUS 308 Week 3 Problem Set

ASSIGNMENT WEEK 3

Complete the problems below and submit your work in an Excel document. Be sure to show all of your work and clearly label all calculations. All statistical calculations will use the

• Several statistical tests have a way to measure effect size.

• What is this, and when might you want to use it in looking at results from these tests on job related data?

BUS 308 Week 4 DQ 1 Confidence Intervals

BUS 308 Week 4 DQ 1 Simple Regression Analysis

Simple Regression Analysis

Use the data in the chart to answer the questions below. The data indicates the number of “sick days”

• Discussion 4-1/Confidence Intervals

• Many people do not “like” or “trust” single point estimates for things they need measured.

BUS 308 Week 4 DQ 2 Chi-Square Tests

BUS 308 Week 4 DQ 2 Multiple Regressions Analysis

Multiple Regression Analysis

Develop a multiple linear regression equation that describes the relationship between tenure and the other variables in the chart above.

• Discussion 4-2/Chi-Square Tests

• Chi-square tests are great to show if distributions differ or if two variables interact in producing outcomes.

BUS 308 Week 4 Problem Set

BUS 308 Week 4 Quiz (New)

1. Question : The goodness of fit test null hypothesis states that the sample data does not match an expected distribution.

• ASSIGNMENT WEEK 4

• Let’s look at some other factors that might influence pay. Complete the problems below and submit your work in an Excel document. Be sure to show all of your work and clearly label all

BUS 308 Week 4 Quiz

BUS 308 Week 5 DQ 1 Confidence Intervals

Confidence Intervals

A hardware retailer has average sales of \$64,235 with a standard deviation of \$5,918 for a 12-month period. The mean monthly sales for all retailers in the chain are \$59,844.

• . Question : With reference to problem 1, what statistic determines the correlation of experience with productivity, controlling for age in experience?

BUS 308 Week 5 DQ 1 Correlation

BUS 308 Week 5 DQ 2 Correlation and Confidence Intervals

Correlation and Confidence Intervals

A car dealer is using the number of years customers have owned their vehicles to predict how long it will be before they elect to replace them.

• Discussion 5-1/Correlation

• What results in your departments seem to be correlated or related to other activities?

BUS 308 Week 5 DQ 2 Regression

BUS 308 Week 5 Final Paper (2 Papers)

This tutorial contains 2 Different Papers

The final paper provides you with an opportunity to integrate and reflect on what you have learned during the class.

• Discussion 5-2/Regression

• At times we can generate a regression equation to explain outcomes.

• For example, an employee’s salary can often be explained by their pay grade, appraisal rating,

BUS 308 Week 5 Final Paper

BUS 308 Week 5 Problem Set

ASSIGNMENT WEEK 5

1. Create a correlation table for the variables in our (Use analysis ToolPak or StatPlus:mac LE function Correlation).

• Writing the Final Paper

• Assignment Instructions:

• A retail store has recently hired you as a consultant to advise on economic conditions. One important indicator that the retail store is concerned about is the unemployment rate.

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