# GC BIO500 full course – discussions and Assignments – 2016 may

**GC BIO 500 week 1 dq 1 & dq 2**

dq 1

Search for 2 or 3 SPSS tutorials to help you learn how to use

SPSS. Answer the following about the websites. Provide the website for the 2 or

3 tutorials that you found on SPSS? What specific things were you searching for

in these tutorials? What did you like or dislike about the tutorials? What did

you find the most useful in these tutorials?

dq 2

This course is designed to provide you with the knowledge

and skills in application, evaluation, analysis, and interpretation of

biostatistical data used to inform public health programs, policy, and

practice. View the online video, “Careers in Biostatistics.” The

video describes the education that a professional biostatistician receives at

the University of North Carolina. More than likely you will be working with

professional biostatisticians. Why is it important for you to take this course

in biostatistics?

**GC BIO 500 week 2 dq 1 & dq 2**

dq 1

Compare a minimum of three statistical packages that are

available to statisticians and/or students of statistics.

dq 2

Assume you are working for a local public health

organization at the state level. Your team wants to develop a program to

prepare for a possible pandemic that is spreading worldwide. View, “Laurie

Garrett on Lessons From the 1918 Flu.” How could knowledge of the course

objectives help you make recommendations to your organization?

**GC BIO 500 week 3 dq 1 & dq 2**

dq 1

It is time to relate the rules and concepts of probability

to the practice of statistics and experimentation. Sampling distributions

provide the link between probabilities and data. Recall that the sum of the

probabilities of all possible outcomes for a certain event must equal one.

Because the variables representing or describing a certain event can take on a

range of values, the frequency of each of those values forms a distribution of

possible outcomes, each with its own probability of occurrence. View

“Central Limit Theorem” (media piece). What is the significance of

the frequency histogram illustrated by dice and numbers in “Dice

Combination?” How does this relate to the central limit theorem provided

in the media? Roll the dice, what were your odds? HINT: Click on Dice

Combination in the media. If you roll the dice, you have to count the total

number of two dice. There are two ways to check on your results (Refer to the

instructions by clicking Instructions); click on the dice combinations and odds

given in the frequency histogram and the table or click the red bar at the

right side of the media piece. Explore the basic principle of probability

through this media piece. Utilize the quiz to ensure that you understand these

basic principles. What is the significance of probability in judgment and

decision making in important aspects of health care? Explain your response with

an applicable example.

dq 2

For the public health industry, describe some examples of a

random variable.

**GC BIO 500 week 4 dq 1 & dq 2**

dq 1

Explain the important points of the central limit theorem.

dq 2

View “Seth Berkley: HIV and Flu–The Vaccine

Strategy.”

What are some of the tools in this course that

epidemiologists use to perform their work?

**GC BIO 500 week 5 dq 1 & dq 2**

dq 1

As a health care professional in public health, describe

some examples of where hypothesis testing would be used.

dq 2

This course is designed to provide you the knowledge and

skills in application, evaluation, analysis, and interpretation of

biostatistical data used to inform public health programs, policy, and

practice. Elizabeth Pisani is an epidemiologist in public health and has a

message about the role that politics has on the use of the data. View

“Elizabeth Pisani: Sex, Drugs and HIV – Let’s Get Rational.” Do you

agree or disagree with Pisani’s message about the role of politics in public

health?

**GC BIO 500 week 6 dq 1 & dq 2**

dq 1

As a health care professional in public health, compare when

you would use hypothesis testing and when you would use regression.

dq 2

If a regression line (linear regression line) is said to

“fit” the data presented in a scatter plot, what relation is

minimized between the observed data, y, and the predicted output for the

regression line?

**GC BIO 500 week 7 dq 1 & dq 2**

dq 1

As a health care professional in public health, describe

some examples that demonstrate the importance of interaction of variables in a

two-way analysis of variance.

dq 2

Explain why computing a variance of several numbers is like

analyzing their differences.

**GC BIO 500 week 8 dq 1 & dq 2**

dq 1

Discuss the differences between parametric and nonparametric

tests.

dq 2

Discuss the advantages of nonparametric tests.

**GC BIO 500 week 4 Confidence Interval assignment**

**Details:**

In the Topic 1 Assignment, you compared the BMI values from

Data Set 1 (in the appendix of the textbook) from a perspective of measuring

the center and variation of the data. Chapters 5 and 6 in the textbook allow

you to use more sophisticated tools to estimate the parameters of a population.

Refer to Data Set 1 in Appendix B and use the sample data

with Excel and/or SPSS to accomplish the following:

1. Construct a 99% confidence interval estimate of the mean

body mass index for men.

2. Construct a 99% confidence interval estimate of the mean

body mass index for women.

3. Compare and interpret the results. It is known that men

have a mean weight that is greater than the mean weight for women, and the mean

height of men is greater than the mean height of women. Do men also have a mean

body mass index that is greater than the mean body mass index of women?

APA format is not required, but solid academic writing is

expected.

This assignment uses a grading rubric. Instructors will be

using the rubric to grade the assignment; therefore, students should review the

rubric prior to beginning the assignment to become familiar with the assignment

criteria and expectations for successful completion of the assignment.

You are not required to submit this assignment to Turnitin.

**GC BIO 500 week 5 Hypothesis Testing assignment**

**Details:**

Chapter 8 of the textbook explains how to make inferences

from two samples using the process of hypothesis testing.

Refer to Data Set 1 in Appendix B and test the claim that

the mean body mass index (BMI) of men is equal to the mean BMI of women.

Use Excel and/or SPSS to perform the hypothesis test.

Assume that the two samples are independent simple random

samples selected from normally distributed populations. Do not assume that the

population standard deviations are equal.

Use “Example Hypothesis Test of Treatment for Bipolar

Depression” on page 391 of the textbook as a guide for your test.

APA format is not required, but solid academic writing is

expected.

You are not required to submit this assignment to Turnitin.

**GC BIO 500 week 6 Effect of Heredity and Environment on IQ
assignment**

**Details:**

Use Excel or SPSS to complete Exercise 1 in the Cumulative

Review Exercises on page 485 in the textbook.

APA format is not required, but solid academic writing is

expected.

You are not required to submit this assignment to Turnitin.

**GC BIO 500 week 7 Analysis of Variance assignment**

**Details:**

Chapter 11 of the textbook covers “Analysis of

Variance”, however the authors state that “Testing for Equality of

Three or More Population Means” might be a better chapter title.

Use Excel or SPSS to perform the one-way analysis of variance

(ANOVA) for the data in “From Data to Decision” on page 565 of the

textbook.

APA format is not required, but solid academic writing is

expected.

You are not required to submit this assignment to Turnitin.

**GC BIO 500 week 8 Rank Correlation assignment**

**Details:**

For the following assignment, use the Rank Correlation that

was demonstrated in Chapter 12 of the textbook (page 566). Utilizing Excel or

SPSS:

1. Use a rank correlation coefficient to test for a

correlation between two variables.

2. Use a significance level of ?=0.05.

The new health care program in the United States makes

provisions for capitation programs where health care insurers work with clinical

facilities to perform risk analysis of patients to determine the cost of

providing care. The following assignment might be used to assess how much a

person smokes.

When nicotine is absorbed by the body, cotinine is produced.

A measurement of cotinine in the body is therefore a good indicator of how much

a person smokes. The reported number of cigarettes smoked per day and the

measured amounts of cotinine (in ng/ml) are provided. (The values are from

randomly selected subjects in a National Health Examination Survey.) Is there a

significant linear correlation? How would you measure the cotinine level in the

body? Explain the result.

Refer to the “Rank Correlation Table.”

APA format is not required, but solid academic writing is

expected.

You are not required to submit this assignment to Turnitin.

**Rank Correlation Table**

x (cigarettes per day) | 60 | 10 | 4 | 15 | 10 | 1 | 20 | 8 | 7 | 10 | 10 | 20 |

y(cotinine) | 179 | 283 | 75.6 | 174 | 209 | 9.51 | 350 | 1.85 | 43.4 | 25.1 | 408 | 344 |

**GC BIO 500 week 8 BMI Statistical Report assignment**

**Details:**

Write a 750-1000 word statistical laboratory report using

the guidelines in the assigned article, “How to Write a Statistical

Report.” This statistical report is not meant to be an APA report or a

multiple-page scholarly treatise. The goal is that you become familiar with the

formal report format that you will use whenever you are reporting statistical

analysis. The report format includes the following sections: Abstract, Purpose,

Methods, and Results.

Assume that you are asked to perform an exploratory data

analysis in which the emphasis is to compare the difference between the body

mass index (BMI) values of men and women. Use Excel and/or SPSS to create

reports and run analyses on the data for the Data Set 1 in Appendix B of your

textbook.

Assume you are a biostatistics analyst and you received a

request from the director of the nutrition program to perform the analysis. The

director is developing an obesity program for the state and has obtained the

data set from the National Center for Health Statistics (NCHS). Because it has

been some time since the director has had a statistics course, any points that

would make your analysis easier to understand would be appreciated.

Generate appropriate histograms or box plots. Find

appropriate statistics that will help to understand the data set. Are there any

notable features? Are there any outliers? Describe the key elements of center,

variation, distribution, and outliers.

A minimum of three scholarly references are required.

While APA format is not required for the body of this

assignment, solid academic writing is expected, and in-text citations and

references should be presented using APA documentation guidelines, which can be

found in the APA Style Guide, located in the Student Success Center.

This assignment uses a grading rubric. Instructors will be

using the rubric to grade the assignment; therefore, students should review the

rubric prior to beginning the assignment to become familiar with the assignment

criteria and expectations for successful completion of the assignment.

You are required to submit this assignment to Turnitin.

Refer to the directions in the Student Success Center.