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Question: is there an association between gender and concerns about data...

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Is there an association between gender and concerns about data privacy? A sample was collected from 800 teenage students and the table of observed frequency, expected frequency and chi square contributions are provided below.

a.       Calculate the Expected frequency and the Chi-square contribution for Boy and More concerned (indicated with question marks in the tables below) and perform Chi-square analysis to answer the question above at 5% level. 

b.       What will be your conclusion if the significance level is now 1%? 

OBSERVED Frequency    
  More concerned Less concerned TOTAL
Boy 185 220 405
Girl 213 182 395
TOTAL 398 402 800

 

 

EXPECTED Frequency    
  More concerned Less concerned TOTAL
Boy         ?   405
Girl     395
TOTAL 398 402 800

 

Chi-Square Contribution    
  More concerned Less concerned TOTAL
Boy       ? 1.34 2.68
Girl 1.38 1.37 2.75
TOTAL 2.73 2.71 5.44

 

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