Della wants to make a one-sample z interval to estimate what proportion of her community members favor a tax increase for more local school funding. She wants her margin of error to be no more than +2% at the 95% confidence level. What is the smallest sample size required to obtain the desired margin of error? Choose 1 answer: 267 B. 601 1068 2401

Della wants to make a one-sample z interval to estimate what proportion of her community members favor a tax increase for more local school funding. She wants her margin of error to be no more than +2% at the 95% confidence level. What is the smallest sample size required to obtain the desired margin of error? Choose 1 answer: 267 B. 601 1068 2401

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

Question

Della wants to make a one-sample z interval to estimate what proportion of her community members favor a
tax increase for more local school funding. She wants her margin of error to be no more than E2% at the 95%
confidence level.
What is the smallest sample size required to obtain the desired margin of error?
Choose 1 answer:
A
267
B.
601
1068
D.
2401

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