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ezto.mheducation com Accounting Web Slice Gallery Sites suggérés Governor in council app eAlgonquin.ca 99 Names of A...teric Online AC live NelsonBrain - My Home cgin.aro Windows Google Personnaliser les liens BMO- Bank of...ine Banking Chegg Study Guided Solutions and Study Help Chegg.com Sign In or Sign Up | Chegg.com Chapter 8 Assignment Exercise 8-22 Ms. Maria Wilson is considering running for mayor of her town. Before completing her nomination papers, she decides to conduct a survey of voters. A sample of 540 voters reveals that 480 would support her in the November election a. Estimate the value of the population proportion. (Round the final answer to 3 decimal places.) Estimated population proportion b. Compute the standard error of the proportion. (Round the final answer to 3 decimal places.) Standard error of the proportion C. Develop a 99% confidence interval for the population proportion. (Round the final answers to 3 decimal places.) Confidence interval for the population proportion is between and d. Interpret your findings. (Round the final answers to the nearest whole number.) We are reasonably sure the population proportion is betweern and References eBook &Resources;

Explanation / Answer

a) population proportion, p = 480 / 540 = 0.889

b) standard error = sqrt(p * (1 - p) / n) = sqrt(0.889 * (1 - 0.889) / 540) = 0.014

c) Z score for 99% confidence interval = Z0.005 = 2.58

Confidence interval = (p + Z0.005 * SE)

                                = (0.889 + 2.58 * 0.014)

                                = (0.889 + 0.036)

                                = (0.853 , 0.925)

d)

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