(a) Identify the claim and stateH0andHa. What is the claim?Let Region A be sample 1 and let Region B be sample 2. IdentifyH0andHa.(b) Find the critical value(s) and identify the rejection region.(Round to three decimal places as needed. Use a comma to separate answers as needed.)What is the rejection region?(c) Find the standardized test statistic z.(Round to two decimal places as needed.)(d) Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim. An energy company wants to choose between two regions in a state to install energy-producing wind turbines. A researcher claims that the wind speed in Region A is less than the wind speed inRegion B. To test the regions, the average wind speed is calculated for 90 days in each region. The mean wind speed in Region A is 14.1 miles per hour. Assume the population standarddeviation is 2.8 miles per hour. The mean wind speed in Region B is 15.1 miles per hour. Assume the population standard deviation is 3.2 miles per hour. At a = 0.05, can the company supportthe researcher's claim? Complete parts (a) through (d) below.

Name: (a) Identify the claim and stateH0andHa. What is the claim?Let Region
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Description: (a) Identify the claim and stateH0andHa. What is the claim?Let Region A be sample 1 and let Region B be sample 2. IdentifyH0andHa.(b) Find the critical value(s) and identify the rejection region.(Round to three decimal places as needed. Use a comm

x1 = 14.1, σ1 = 2.8, n1 = 90 x2 = 15.1, σ2 = 3.2, n2 = 90Claim: The wind speed in Region A is less than the wind speed in Region B H0 : μ1= μ2Ha : μ1< μ2using excel function =NORM.S.INV(0.05), Critical values is Z0 = -1.645 Rejection Region: Z < -1.645since, Z < -1.645, reject H0 Reject H0 . There is enough evidence at the 5% level of significance to support the researcher's claim that the wind speed in Region A is less than the wind speed in Region B.

Answered: An energy company wants to choose…

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) Identify the claim and state

and

Ha.

What is the claim?

Let Region A be sample 1 and let Region B be sample 2. Identify

and

Ha.

(b) Find the critical value(s) and identify the rejection region.(Round to three decimal places as needed. Use a comma to separate answers as needed.)

What is the rejection region?

(d) Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim.

An energy company wants to choose between two regions in a state to install energy-producing wind turbines. A researcher claims that the wind speed in Region A is less than the wind speed in
Region B. To test the regions, the average wind speed is calculated for 90 days in each region. The mean wind speed in Region A is 14.1 miles per hour. Assume the population standard
deviation is 2.8 miles per hour. The mean wind speed in Region B is 15.1 miles per hour. Assume the population standard deviation is 3.2 miles per hour. At a = 0.05, can the company support
the researcher's claim? Complete parts (a) through (d) below.

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