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Author Question: A poll investigating the level of public support for proposed gun control legislation reported that ... (Read 34 times)

james9437

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on: Jul 25, 2018
A poll investigating the level of public support for proposed gun control legislation reported that 66 of the respondents were in favor. The pollsters reported a sampling error of 2.
 
  When the responses were broken down by gender, support was 3 higher among women than men. The pollsters said the margin of error for this difference was 3. Why is the margin of error larger for the difference in support between the genders than for the overall level of support?

Question 2

According to government data, the probability than an adult never had the flu is 19. You randomly select 70 adults and ask if he or she ever had the flu.
 
  Decide whether you can use the normal distribution to approximate the binomial distribution, If so, find the mean and standard deviation, If not, explain why. Round to the nearest hundredth when necessary.


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SomethingSomething

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Reply #1 on: Jul 25, 2018
Answer to Question 1

Differences have a larger standard error than single samples.

Answer to Question 2

use normal distribution,  = 13.3 and  = 3.28.


james9437

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Reply #2 on: Jul 25, 2018
TY


SomethingSomething

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Reply #3 on: Jul 25, 2018
You're welcome


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