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Name: A researcher has heard that the average wind speed in a certain city i
Uploaded: 2024-03-20T07:07:12.000Z
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Description: A researcher has heard that the average wind speed in a certain city is 8 miles per hour. He wants to see whether it is different. A random sample of 32 days has an average wind speed of 8.2 miles per hour. Suppose the population standard deviation i

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher has heard that the average wind speed in a certain city is 8 miles per hour. He wants to see whether it is different. A random sample of 32 days has an average wind speed of 8.2 miles per hour. Suppose the population standard deviation is 0.6 mile per hour. At α=0.05, is there enough evidence to reject the claim? Use p-value to take the decision.

Construct a 92% interval estimate for the average wind speed of the city.

What is the probability of being able to statistically determine a true change in the wind speed of magnitude 1.5 in either direction?

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