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Owner: julesk75
Created: Aug 1, 2019
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M7D1 A Chi-Square test of Independence
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     For our group project, we asked the following questions of 100 random adults:

  1. Do you currently exercise?  Yes or No
  2. How old are you? ____ years
  3. How many hours of exercise a week do you think an average person requires to be healthy? _____hours
  4. How concerned are you with your level of activity? Select one: Highly concerned, Moderately concerned, Not at all concerned?

  For the Chi-Square test of independence, I will be using question #1 and questuon #4, and using a 5% level of significance to see if the 2 categories are independent of each other.

H0: exercise habits and level of concern are independent of each other
H1: exercise habits and level of concern are dependent of each other


Before doing the hypothesis test, I was certain that people who exercise and how concerned they are with their fitness were dependent on each other. I find that the older I get, the more I need to exercise to stay healthy and in shape, so I exercise because I am concerned about my health.  If I wasn't concerned, I probably wouldn't just exercise for the fun of it.

Here are the StatCrunch results:

Contingency table results:

Columns: Exercise?, and Concern

<result 1>

Per the results above, the P-value of 0.4528 is greater than the significance value of 0.05, so I fail to reject H0.  It is possible that the variables are independent of each other, as I have no evidence that they are not. It does not appear that people who exercise have any more concern over their health than those who do not. 










 

Result 1: Contingency table (with data)   [Info]

Contingency table results:


Rows: Exercise?
Columns: Concern
HighlyModeratelyNot at allTotal
No9162146
Yes13231854
Total223939100

Chi-Square test:


StatisticDFValueP-value
Chi-square21.58459360.4528

HTML link:
<A href="https://www.statcrunch.com/5.0/viewreport.php?reportid=88543">M7D1 A Chi-Square test of Independence</A>

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