Math 399n - Study guides, Class notes & Summaries

MATH 399N WEEK 4 iLab, MATH 399N: Applied Managerial Statistics- Chamberlain

Initial Post Instructions After exploring different types of graphs this week, it is unfortunate to learn that there are sometimes misleading graphs used in the news, politics, medicine, etc. in order to sway a decision or belief. Some items to watch out for in graphs area. 1. Is there a title that explains what the graph is displaying? 2. Are numbers on the axis spaced out proportionally or have they been varied to create a dramatic impression? 3. Is the graph too loud? Does it have too man...

Initial Post Instructions After reviewing data from a sample, an inference can be made about the population. For example, Find a data set on the internet. Some suggested search terms: Free Data Sets, Medical Data Sets, Education Data Sets. 1. Introduce your Data Set and Cite the Source. 2. What trends do you notice in your data set? 3. Based on the trends and the history of your data set, make a claim. What kind of test (left, right, two tailed) would you have to complete? 4. Explain the st...

Initial Post Instructions Medical professionals can find relationships between variables. The more you drink alcohol, the less functionality of your liver. The less carbohydrates a person intakes, the lower their Body Mass Index. Data can be collected and organized as an ordered pair (x, y). The data can be analyzed to determine the type and strength of a correlation and to calculate a regression line in order to make a prediction. Use the internet to find a data set of ordered pairs. Key ter...

Initial Post Instructions Topic: Poisson Probability Distribution The Poisson Distribution is a discrete probability distribution where the number of occurrences in one interval (time or area) is independent of the number of occurrences in other intervals. April Showers bring May Flowers!! Research the "Average Amount of Days of Precipitation in April" for a city of your choice. In your initial post, Introduce a. Introduce the City and State. Let us know a fun fact! b. Tell us the aver...

Initial Post Instructions Medical professionals can find relationships between variables. The more you drink alcohol, the less functionality of your liver. The less carbohydrates a person intakes, the lower their Body Mass Index. Data can be collected and organized as an ordered pair (x, y). The data can be analyzed to determine the type and strength of a correlation and to calculate a regression line in order to make a prediction. Use the internet to find a data set of ordered pairs. Key ter...

Initial Post Instructions Log onto website where you can observe your service bill for the last 12 months (electric bill, cell phone bill, water bill, etc.). If you do NOT feel comfortable sharing this data, you can make up values. 1. In excel, list the values of your bill for the last 12 months on one column. 2. Find the sample mean and sample standard deviation of your data. 3. Pick three bills from the last 12 months and change the values into z-scores. What does the z-score tell you abou...

Log onto website where you can observe your service bill for the last 12 months (electric bill, cell phone bill, water bill, etc.). If you do NOT feel comfortable sharing this data, you can make up values. 1. In excel, list the values of your bill for the last 12 months on one column. 2. Find the sample mean and sample standard deviation of your data. 3. Pick three bills from the last 12 months and change the values into z-scores. What does the z-score tell you about that particular month? A...

MATH 399N Week 7 Assignment; Course Project, Part II; Hypothesis Testing - Births, Deaths, Divorce, and Marriages in the U.S

Initial Post Instructions When data is collected, the most common calculations computed are the Measures of Central Tendency, mean, median and mode. It is important to know how to compute these values and it is also extremely important to know what these values mean in context of the data set. Use the internet to find a data set. Key terms to search: Free Public Data Sets and Medical Data Sets. 1. Introduce your Data Set and Cite the Source. 2. Why was this data interesting to you? 3. Cal...