The Central Limit Theorem is the Big Idea behind a lot of the statistics actually used in science to draw conclusions. Why is that?
First, restate the theorem in your own words. Then explain why you think it is important. It’s OK if your ideas aren’t fully developed yet, I want you to feel around and explore ideas.
Instructions
For this discussion, we are going to run an experiment flipping a coin. Follow these steps and record your results:
Step 1 – Flip a coin 10 times. Record the number of times Heads showed up.
Step 2 – Flip a coin 20 times. Record the number of times Heads showed up.
Discussion Prompts
Respond to the following prompts in your initial post:
What was your proportion of heads found in Step 1 (Hint: To do this, take the number of heads you observed and divide it by the number of times you flipped the coin). What type of probability is this?
How many heads would you expect to see in this experiment of 10 coin flips?
What was your proportion of heads found in Step 2 (Hint: To do this, take the number of heads you observed and divide it by the number of times you flipped the coin) What type of probability is this?
How many heads would you expect to see in this experiment of 20 coin flips?
Do your proportions differ between our set of 10 flips and our set of 20 flips? Which is closer to what we expect to see?
Supporting Resources:https://www.youtube.com/watch?v=ykR4Bg_hubM (Links to an external site.)
Find and discuss an example from your work or leisure activities of a measure of central tendency commonly used.
Discuss why knowing the standard deviation would help you to interpret the statistic.
Leisure Activity: Running/Fitness
Discussion: Misleading Graphs
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Required Resources
Read/review the following resources for this activity:
Textbook: Chapter 2
Lesson
Minimum of 1 scholarly source
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 are—
Is there a title that explains what the graph is displaying?
Are numbers on the axis spaced out proportionally or have they been varied to create a dramatic impression?
Is the graph too loud? Does it have too many components that it distracts from content?
Are there sources cited to know where the data came from?
Use the internet to find a misleading graph. Key Terms to Search: Misleading Graphs
Provide a screenshot of the graph
Cite the Source
Explain why the graph is misleading
Analysis
Explain how you would fix the graph so it is not misleading.
Explain why the creator of the misleading graph would want to create the graph in the first place.
SPSS: Identifying and Inputting Variables
Assignment Overview
By successfully completing this assignment, you demonstrate your proficiency in the following competency and specialized behaviors:
Competency 4: Engage in practice-informed research and research-informed practice.
C4.SP.A: Apply leadership skills, decision making, and the use of technology to inform evidence-based research practice to develop, implement, evaluate, and communicate interventions across the specialization of advanced generalist practice settings.
Related Assignment Criteria:
1: Devise accurate SPSS datasets.
3: Describe and report the statistical method or test outcomes using the appropriate statistical method or test.
C4.SP.B: Apply leadership skills, decision making, and the use of technology to inform program evaluation to develop, implement, evaluate, and communicate interventions across the specialization of advanced generalist practice settings. ​
Related Assignment Criteria:
2: Enter appropriate statistical data that assists in program evaluation.
4: Apply critical thinking in verbal and written communication through the use of leadership and technology.
Assignment Scenario
You are overseeing a mentoring program for youth who have been identified as being at risk and you want to complete a program evaluation to measure the impact on youth who participate. You also want to consider whether variables such as sex and race/ethnicity factor into the results.
Assignment Instructions
In the Unit 2 Dataset 1 given in the resources, find baseline data for the youth who have entered the program. From this data, identify all of the variables represented and input the data into an SPSS file. Save the file and upload it to this assignment. Note that you are not completing any analysis at this point in time. You are simply practicing entering data in SPSS, and you need to demonstrate the ability to identify the correct level of measurement.
You have been hired by the D. M. Pan National Real Estate Company to develop a model to predict housing prices for homes sold in 2019. The CEO of D. M. Pan wants to use this information to help their real estate agents better determine the use of square footage as a benchmark for listing prices on homes. Your task is to provide a report predicting the housing prices based square footage. To complete this task, use the provided real estate data set for all U.S. home sales as well as national descriptive statistics and graphs provided.
