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MTH 231 Entire Course

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MTH 231 Week 1 DQs

MTH 231 Week 1 Populations and Sampling Paper

MTH 231 Week 2 DQs

MTH 231 Week 2 Data—Organizing, Summarizing, Probability, and Distribution Worksheet

MTH 231 Week 3 DQs

MTH 231 Week 3 Life Sciences Article Analysis

MTH 231 Week 4 DQs

MTH 231 Week 4 Confidence Intervals in the Life Sciences Presentation

MTH 231 Week 4 Distribution, Hypothesis Testing, and Error Worksheet

MTH 231 Week 5 Final Exam

MTH 231 Week 5 Hypothesis Testing and Correlation Worksheet

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Use the following table for questions 1 and 2.

Butterflies

Red

Blue

Orange

Yellow

Collected in spring

3

2

1

24

Collected in summer

14

7

8

24

Collected in autumn

12

72

9

43

1. If you randomly select one butterfly from the table above, what is the probability of selecting a red butterfly or one collected in spring?

2. If you randomly select one butterfly collected in spring, one butterfly collected in summer, and one butterfly collected in autumn, what is the probability of selecting all yellow butterflies?

3. Determine the appropriate approach to conduct a hypothesis test for this claim: Fewer than 5% of patients experience negative treatment effects. Sample data: Of 500 randomly selected patients, 2.2% experience negative treatment effects.
A) Use the normal distribution.
B) Use the Student t distribution.
C) Use the chi-square distribution.
D) Use nonparametric or bootstrapping methods.

4. Determine the appropriate approach to conduct a hypothesis test for this claim: The systolic blood pressure of men who run at least five miles each week varies less than does the systolic blood pressure of all men. Sample data: n = 100 randomly selected men who run at least five miles each week, sample mean = 108.4, and s = 20.3
A) Use the normal distribution.

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MTH 231 Week 1 Individual Assignment Populations

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Resources: Ch. 1 of the text, the Internet, and the University Library

Consider how life sciences researchers collect information from samples to learn about populations.

Write a 700- to 1,050-word paper about sampling from populations.

Include the following information:

Define population and describe the characteristics of a population.

Define sample and describe the characteristics of a sample.

Compare samples and populations and explain how the concepts are related. Provide examples to illustrate your arguments.

Explain how to increase the chance that a sample is representative of a chosen population. Provide an example.

Describe random sampling and its benefits for research.

Cite at least two references.

Format your paper consistent with APA guidelines.

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MTH 231 Week 2 Individual Assignment Data-Organizing

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Resources: Ch. 2–4 and Appendix B of the text and Statdisk

Complete the University of Phoenix Material: Data—Organizing, Summarizing, Probability, and Distribution Worksheet lo

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MTH 231 Week 3 Team Assignment Life Sciences Article

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Resources: Ch. 3 and 4 of the text, the Week Two Electronic

Reserve Readings “Fetal Deaths and Proximity to Hazardous Waste Sites in Washington State” and “Intensive Lipid Lowering With Atorvastatin in Patients With Coronary Artery Disease, Diabetes, and Chronic Kidney Disease,” the Internet, and the University Library

Discuss the methodology of life sciences researchers in the two articles. Explore the data collection and analysis techniques used by the authors of these articles in preparation for the Life Sciences Article Analysis.

Write a 1,050- to 1,750-word paper about dependence and probability. Discuss the following questions:

What population is researched in each article?

What data are collected by the authors in each article? What are the independent events or variables? What are the dependent events or variables? Evaluate whether the authors make appropriate claims related to the independence or dependence of the events or variables they investigate.

Explain relative risk, odds ratios, and fetal death rates. Describe the use of these tools in the article “Fetal Deaths and Proximity to Hazardous Waste Sites in Washington State.”

Explain absolute risk reduction and number needed to treat.

Describe the use of these tools in the article “Intensive Lipid

Lowering With Atorvastatin in Patients With Coronary Artery Disease, Diabetes, and Chronic Kidney Disease.”

Summarize how communication of scientific findings is facilitated with the concept of dependence and with tools for expressing probability.

Cite at least four references.

Format your paper consistent with APA guidelines

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MTH 231 Week 4 Individual Assignment Distribution

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Resources: Ch. 5–7 of the text and Statdisk

Complete the University of Phoenix Material: Distribution, Hypothesis Testing, and Error Worksheet, located in Week Four of the student website.

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MTH 231 Week 4 Team Assignment Confidence Intervals

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Resources: Ch. 5 and 6 of the text, the University Library, the Internet, and Statdisk

Identify a normally distributed variable related to your chosen life science that serves as your example variable. Review the data sets presented in Appendix B of the text and in Statdisk, selecting one that corresponds with your chosen life science. Choose a particular variable you would like to explore and use Statdisk to determine if its distribution is approximately normal.

Note. Data Set 5: Passive and Active Smoke in the text does not include normally distributed data and may not be used in this project.

Prepare a 12- to 15-slide Microsoft PowerPoint presentation that explains confidence intervals in your chosen life science. Imagine that you are responsible for educating first-year college students who are majoring in your chosen life science. Explain to the students how and why confidence intervals relate to their field.

Discuss the following questions:

What is a normal distribution? Describe your example variable and explain why normally distributed data is important in your chosen life science. Show the distribution of your example variable in a Statdisk-generated image and demonstrate how to calculate the probability of a range of values within this normal distribution.

What is a standard normal distribution? How does it differ from other normal distributions? Convert the normally distributed example variable within your chosen life science to a standard normal distribution. Show this example in a Statdisk-generated image and demonstrate how to calculate the probability of a range of values within this standard normal distribution.

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MTH 231 Week 5 Final Exam Guide Set 1

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MTH 231 Week 5 Final Exam

Use this worksheet for your answers. Your score, based on the points shown for this exam in the rubric, will be corrected to the basis points shown for the final exam in the syllabus. Submit to the Assignments Section by 11:59 pm of the last day of class. Late work will not be accepted.

1. The following are the scores obtained by 30 students in epidemiology test:

83 67 94 77 55 82

79 72 88 65 81 63

92 61 85 71 79 70

89 52 66 63 75 84

99 81 73 79 68 77

a) Apply the Statdisk and look for the user-defined relative frequency histogram having a class width of 10 from 50. The labels must be “on”. Copy the histogram in this sheet.

b) Look for the Normality Assessment using the Statdisk.

Does it show the sample from the normal population?

Are the results from the histogram and the test results the same with regard to normality?

What did you apply for the alpha level of the test? 0

c) Refer to the Statdisk, get the descriptive statistics of the data below:

Mean

Median

Standard Deviation

Range

Midrange

d) Sarah got 79 in her exam. The z-score is shown below: 0.2927

2. The die rolled once with the events as shown:

A: Event F: Roll an even number

B: Event J: Roll 1, 2, 3, or 4

a) Define the term mutually exclusive.

There are two events which are independent and the existence of the first event has nothing to do with the existence of another.

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MTH 231 Week 5 Team Assignment Hypothesis Testing

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Resources: Ch. 7 and 8 and sections 9-1 and 9-2 in Ch. 9 of the text

Complete the University of Phoenix Material: Hypothesis Testing and Correlation Worksheet, located in Week Five of the student website