Posted: November 2nd, 2015

Math

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?) and write a one page conclusion.  Present your

data in an organized manner.

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