You are doing research on balance and fitness. To complete this research you wil

Question

You are doing research on balance and fitness. To complete this research you will need a watch with a second hand. Identify a random sample of n 12 men and n 8 women. You must answer this question: How do you establish that this sample is truly random? Have each subject perform the following task: a) Have the subjects stand with their hands at their side, raise one knee, cross their ankle over the other knee, squat and bring their hands palms together in front of their chest. Time the subject until they put their foot back down on the floor. b) Ask the following questions: i) What is their favorite exercise? What is their favorite exercise? You will analyze your data and compute the following statistics for each group: 1) The Mean and standard deviation of the number of seconds the subject stayed balanced 2) The Median number of days per 3) The Mode of the favorite exercise 4) The 90% confidence interval of the mean 5) Construct a complete hypothesis test and determine if the two groups have significantly different balance using alpha = 0.05. Write a one page introduction to your research, discuss how you selected your sample (is a random sample?), and write a one page conclusion. Present your data in an organized manner.

Explanation / Answer

Below is the recored data for given sample

(1)

(2)

Median number of days per week exercised

(3)

Time in Seconds No. of days exercise Favorite Exercise Sr. No. Male Female Male Female Male Female 1 10 8 7 7 Push ups Cardio 2 11 4 5 7 pull ups Cardio 3 12 5 6 7 Push ups Cardio 4 8 8 4 5 pull ups Weights 5 9 8 3 5 Push ups Weights 6 5 7 3 5 pull ups Cardio 7 15 9 3 3 push ups Cardio 8 10 10 5 3 Weights Aerobics 9 9 5 Cardio 10 9 7 Cardio 11 11 4 Weights 12 11 4 push ups Mean 10.0000 7.3750 4.5 5 Std. dev. 2.4121 1.9955

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