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1) A political candidate has asked you to conduct a poll on the average number of children her constituents have. If the candidate only wants
1) A political candidate has asked you to conduct a poll on the average number of children her constituents have. If the candidate only wants a 2 child margin of error at a 95% confidence level and assuming =6=6, what sample size is needed? (Note: Round your critical value to three decimal places before computing.)
- 24
- 25
- 34
- 9
- 8
- 35
2) 17 out of 35 American adults responded "yes" when asked if they have ever voted for a candidate in a party different from which they identify with. What is the critical value for a 95% confidence interval?
- 1.645
- 1.96
- 2.03
- 2.032
- 2.12
- 2.11
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