Question: Pi chart Given : 1 % no friends 1 % refused to answer 1 % don't know 15 % more than 500 friends 20 %

Pi chart

Given :

1 % no friends

1 % refused to answer

1 % don't know

15 % more than 500 friends

20 % 251 - 500 friends

23 % 101 - 250 friends

38 % 1100 friends

A recent poll of 960 Facebook users posed the following question:"Thinking just about your Facebook profile, how many friends do you currently have in your network?"The pie chart below represents their responses. The margin of error is 3.2%

1.What is the population represented here?

2.What is the sample?

3.Calculate the confidence interval for those who have 101-250 friends.

4.Interpret the confidence interval for this poll in a meaningful sentence for those who have 101 - 250 friends. Remember to include the margin of error provided is 95% certain.

5.Calculate the confidence interval for those who have 1 - 100 friends.

6.Interpret the confidence interval for this poll in a meaningful sentence for those who have 1 - 100 friends. Remember to include the margin of error provided is 95% certain.

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