I could use some help with this problem?

  • Thread starter jim1174
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In summary, the conversation discusses the sampling distribution of a sample proportion in a state where 60% of the voters are democrats. The minimum sample size required for the distribution to be approximately normal is mentioned. The probabilities of 190 or less, 150 or more, and a range of 140-230 voters being democrats are also mentioned.
  • #1
jim1174
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I could use some help with this problem?
In a certain state 60% of the voters are democrats. Randomly select a sample of 300 voters.

A. Describe the sampling distribution of the sample proportion.

B. what is the smallest required size of sample for the distribution of the sample proportion to be approximately normal?

C. what is the probability that 190 or less voters are democrats?

D. what is the probability that 150 or more voters are democrats?

E. What is the probability that the number of democrats is between 140 and 230?
 
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  • #2
Same as for your other post: homework questions, no attempt to solve them yourself.
 
  • #3
show some attempt.
 

FAQ: I could use some help with this problem?

What kind of problem do you need help with?

I am not sure what specific problem you are referring to. Can you provide more context or details?

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Sure, I would be happy to. Please provide me with the necessary information and I will try to explain the problem as clearly as possible.

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The significance of a problem can vary depending on the context. Can you please clarify what you mean by significance?

Do you have any ideas for potential solutions to the problem?

I am happy to brainstorm potential solutions with you, but first I need to have a clear understanding of the problem. Can you provide more information?

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