In a congressional district, 55% of registered voters are Democrats. A polling organization selects a random sample

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In a congressional district, 55% of registered voters are Democrats. A polling organization selects a random sample of 500 registered voters from this district. Let p̂ = the proportion of Democrats in the sample.

a. Identify the mean of the sampling distribution of p̂.

b. Calculate and interpret the standard deviation of the sampling distribution of p^. Verify that the 10% condition is met.

c. Describe the shape of the sampling distribution of p̂. Justify your answer.

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The Practice Of Statistics

ISBN: 9781319113339

6th Edition

Authors: Daren S. Starnes, Josh Tabor

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Question Posted: Aug 12, 2020 04:12 AM

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In a congressional district, 55% of registered voters are Democrats. A polling organization selects a random sample

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Step 1 solution Given P055n500 allow pbe the percentage of Democrats inside the sample a identify th...View the full answer

The Practice Of Statistics

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