1. Use the Greatest Canadian Achievement results listed in the excerpt on the previous page to address the following:
   
   
   1. Determine the confidence interval for the equality result.

   2. If the margin of error was changed from ± 1.3 percentage points to ± 5.7 percentage points, how would your interpretation of the data change?

   3. How would your impression of the data change if the confidence level was listed as 4 times out of 5 instead of as 19 times out of 20?
      
      
      
2. There were approximately 28 000 000 Canadian adults when the survey on the Greatest Canadian Achievement was conducted. Give an upper and lower estimate for the number of Canadian adults that feel diversity is Canada's greatest achievement over the past 20 years.
   
   
   
   
   

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