# MA – 235 Final Project Winter 2020 You are doing research on

MA – 235 Final Project Winter 2020

You are doing research on balance and fitness. It is known that the time a person can stay balanced in a certain yoga pose is normally distributed with a mean of µ = 68 seconds and a standard deviation of α = 20 seconds. To complete this project, you will use the attached Excel file for data from a sample of 20 athletes. There are three variables:

The time the subject stayed balanced

The number of days per week the subject stayed balanced

The favorite exercise of the subject

Descriptive Statistics

You will analyze your data and compute the following statistics for the sample:

1) The Mean and Standard Deviation of the number of seconds the subject stayed balanced

2) The Median number of days per week exercised

3) The Mode of the favorite exercise

4) The percent of the subjects that stayed balanced longer than 75 seconds

Probability

You will analyze your data and compute the following probabilities:

5) The probability of selecting a subject at random with a favorite exercise of running

6) The probability of selecting a subject at random with a favorite exercise of squats or they exercise more than 5 days per week

7) The probability of selecting a subject at random with a favorite exercise of cardio and they exercise 1 day per week

8) Assume that the probability of an athlete exercising less than 3 days per week is 30%. Use the number of days per week of your first subject as x in the following calculation. Determine the probability of x out of 20 subjects exercised less than 3 days per week.

Hypothesis Testing

Imagine this is your original research. Write a one-paragraph introduction to your research, discuss how you would select your sample (is it a random sample?) and identify your hypothesis regarding the amount of time your athletes will stay balanced. Present all your raw data and statistics in an organized manner (copy and paste from Excel is acceptable). Write a one-paragraph conclusion about your overall project.

You will analyze your data and include the following information:

9) Identify your Null and Alternate Hypotheses using math symbols

10) Identify the α level you chose

11) If you are using a traditional hypothesis test identify the critical z-score

13) If you are using the P-Value Method identify your P-Value

15) Write a concluding statement based on your decision

Important Instructions:

The Excel file will repopulate every time you open it or enter anything in the file. Once you open the file copy and paste the data into a Word document, and save it labeled Project Data.

Now you can use the data to complete the Final Project.

REFER to the RUBRIC below to ensure you submit all of the required components.

Final Project Rubric

Statistics: Maximum of 30 points

Mean is correct (6 points) ____________

Standard deviation is correct (6 points) ____________

Median is correct (6 points) ____________

Mode is correct (6 points) ____________

Percent is correct (6 points) ____________

Probability: Maximum of 24 points

Probability Q5 is correct (6 points) ____________

Probability Q6 is correct (6 points) ____________

Probability Q7 is correct (6 points) ____________

Probability Q8 is correct (6 points) ____________

Hypothesis Test: Maximum of 46 points

Introductory and Concluding Paragraph is well written with no

grammatical errors (10 Points) ____________

Null and Alternate Hypothesis are stated correctly (6 points) ____________

Alpha level is identified (6 points) ____________

Computation of the test statistic is correct (6 points) ____________

Identification of the critical z-score or the P-Value is

correct (6 Points) ____________

Decision regarding the hypothesis is correct (6 points) ____________

Conclusion regarding the hypothesis is correct (6 points) ____________

Extra Credit: Maximum of 5 points

Graphics, charts, graphs, Wow me! ____________