According to a Field Poll conducted February 8 – 17, 2005, 79% of California adults (actual results are 400 out of 506 surveyed) feel that “education and our schools” is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education and the schools is one of the top issues facing California. A 90% confidence interval for the population proportion is: Group of answer choices   (0.761, 0.820) (0.125, 0.188) (0.755, 0.826) (0.130, 0.183)

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A: Point estimate=0.81

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A: Given that p =0.24 E=0.027

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A: Given,n=519x=165p^=xnp^=165519=0.318The point estimation for the proportion is 0.318 .

Q: According to a Field Poll conducted February 8 – 17, 2005, 79% of California adults (actual results…

A: Solution

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A: The sample size is 2100 and 40% responded yes.

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A:

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Q: In your work for a real estate company, you find that in a sample of 1762 home buyers, 722 found…

A: Givenx=722n=1762p^=7221762p^=0.4098α=1-0.98=0.02α2=0.01zc=z0.01=2.3263         (from z-table)

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Q: What Z score would be used to construct a 90% confidence level? Is it ... a. 1.65 b. 2.33 c.…

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