In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in statistical polling is the margin of error - the largest (reasonble) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%). In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was 32% with a margin of error of 1.6%. Describe the conclusion about p using an absolute value inequality. The answer field below uses the symbolic entry option in Mobius. That lets you type in a vertical bar | to represent absolute values. Also, when you type in < and then =, the symbolic entry option will automatically convert that to ≤. In the same way, if you type in > and then, the symbolic entry option will automatically convert that to >. Be sure to use decimal numbers in your answer (such as using 0.40 for 40%).
In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in statistical polling is the margin of error - the largest (reasonble) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%). In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was 32% with a margin of error of 1.6%. Describe the conclusion about p using an absolute value inequality. The answer field below uses the symbolic entry option in Mobius. That lets you type in a vertical bar | to represent absolute values. Also, when you type in < and then =, the symbolic entry option will automatically convert that to ≤. In the same way, if you type in > and then, the symbolic entry option will automatically convert that to >. Be sure to use decimal numbers in your answer (such as using 0.40 for 40%).
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in
statistical polling is the margin of error - the largest (reasonble) error that the poll could have. For
example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between
68% and 76% (72% minus 4% to 72% plus 4%).
In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was
32% with a margin of error of 1.6%. Describe the conclusion about p using an absolute value
inequality.
The answer field below uses the symbolic entry option in Mobius. That lets you type in a vertical bar |
to represent absolute values. Also, when you type in < and then =, the symbolic entry option will
automatically convert that to ≤. In the same way, if you type in > and then =, the symbolic entry
option will automatically convert that to >.
Be sure to use decimal numbers in your answer (such as using 0.40 for 40%).
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