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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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