Posted: November 2nd, 2015
Math
STEP 1: 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?
STEP 2: 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) How many days per week do they exercise?
ii) What is their favorite exercise?
STEP 3: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 week exercised
3) The Mode of the favorite exercise
4) The 90% confidence interval of the mean
STEP 4: Construct a complete hypothesis test and determine if the two groups have
significantly different balance using a = 0.05.
STEP 5: Write a one page introduction to your research, discuss how you selected
your sample (is it a random sample?) andwrite a one page conclusion. Present your
data in an organized manner.
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