TABLE 8.6 bond proposal for school construction will be submitted to the voters at the next municipal election. A major portion of the money derived from this bond issue will be used to build schools in a rapidly developing section of the city, and the remain- der will be used to renovate and update school buildings in the rest of the city. To assess the viability of the bond proposal, a random sample of n₁ = 50 residents in the developing section and n₂100 residents from the other parts of the city were asked whether they plan to yote for the proposal. The results are tabulated in Table 8.6. Sample Values for Opinion on Bond Proposal Developing Section Rest of the City Sample Size 50 100 65 Number Favoring Proposal 38 Proportion Favoring Proposal 76 .65 1. Estimate the difference in the true proportions favoring the bond proposal with a 99% confidence interval. 2. If both samples were pooled into one sample of size n = 150, with 103 in favor of the proposal, provide a point estimate of the proportion of city resi- dents who will vote for the bond proposal. What is the margin of error? (64 P ا...

TABLE 8.6 bond proposal for school construction will be submitted to the voters at the next municipal election. A major portion of the money derived from this bond issue will be used to build schools in a rapidly developing section of the city, and the remain- der will be used to renovate and update school buildings in the rest of the city. To assess the viability of the bond proposal, a random sample of n₁ = 50 residents in the developing section and n₂100 residents from the other parts of the city were asked whether they plan to yote for the proposal. The results are tabulated in Table 8.6. Sample Values for Opinion on Bond Proposal Developing Section Rest of the City Sample Size 50 100 65 Number Favoring Proposal 38 Proportion Favoring Proposal 76 .65 1. Estimate the difference in the true proportions favoring the bond proposal with a 99% confidence interval. 2. If both samples were pooled into one sample of size n = 150, with 103 in favor of the proposal, provide a point estimate of the proportion of city resi- dents who will vote for the bond proposal. What is the margin of error? (64 P ا...

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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