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Author Question: A businesswoman who is running for the vacant City Commission seat with 20,000 registered voters ... (Read 142 times)

plus1

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on: Jun 24, 2018
A businesswoman who is running for the vacant City Commission seat with 20,000 registered voters conducts a survey. In the survey, 56 of the 500 registered voters interviewed say they planned to vote for her. A) What is the population of interest? B) What is the sample? C) Is the 56 a parameter or a statistic?

Question 2

A store's inventory of party supplies consists of 600 red balloons, 200 white balloons, and 200 blue balloons. Your boss asks you to choose a representative sample of 75 balloons for a window display. How many red balloons should you place in the display? Explain your answer.


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jointhecircus

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Reply #1 on: Jun 24, 2018
Answer to Question 1

The 20,000 registered voters.; The 500 registered voters interviewed.; Statistic

Answer to Question 2

45; A sample is representative if its members tend to have the same characteristics as the population from which they were selected. In this case, we would want our sample to contain a similar percentage of red balloons as the store's inventory.


plus1

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Reply 2 on: Jun 24, 2018
Gracias!

nyrave

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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