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Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 5.5 - Problem 11e
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 5.5 - Problem 11e

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# In a certain year, there were 80 days with measurable ISBN: 9780073401331 38

## Solution for problem 11E Chapter 5.5

Statistics for Engineers and Scientists | 4th Edition

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Problem 11E

In a certain year, there were 80 days with measurable snowfall in Denver, and 63 days with measurable snowfall in Chicago. A meteorologist computes (80 + 1)/(365 + 2) = 0.22, (63 + 1)/(365 + 2) = 0.17, and proposes to compute a 95% confidence interval for the difference between the proportions of snowy days in the two cities as follows:

$$0.22-0.17 \pm 1.96 \sqrt{\frac{0.22)(0.78)}{367} \frac{(0.17)(0.83)}{367}}$$

Is this a valid confidence interval? Explain.

Equation transcription:: Text transcription:

0.22-0.17 \pm 1.96 \sqrt{\frac{0.22)(0.78)}{367} \frac{(0.17)(0.83)}{367}}

Step-by-Step Solution:
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##### ISBN: 9780073401331

The answer to “?In a certain year, there were 80 days with measurable snowfall in Denver, and 63 days with measurable snowfall in Chicago. A meteorologist computes (80 + 1)/(365 + 2) = 0.22, (63 + 1)/(365 + 2) = 0.17, and proposes to compute a 95% confidence interval for the difference between the proportions of snowy days in the two cities as follows: $$0.22-0.17 \pm 1.96 \sqrt{\frac{0.22)(0.78)}{367} \frac{(0.17)(0.83)}{367}}$$Is this a valid confidence interval? Explain.Equation transcription::Text transcription:0.22-0.17 \pm 1.96 \sqrt{\frac{0.22)(0.78)}{367} \frac{(0.17)(0.83)}{367}}” is broken down into a number of easy to follow steps, and 78 words. Since the solution to 11E from 5.5 chapter was answered, more than 407 students have viewed the full step-by-step answer. This full solution covers the following key subjects: days, measurable, snowfall, interval, confidence. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. The full step-by-step solution to problem: 11E from chapter: 5.5 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331.

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