Question

State your conclusion to the hypothesis test. A national organization has been working with utilities throughout the nation to find sites for large wind machines that generate electricity. Wind speeds must average more than 22 miles per hour (mph) for a site to be acceptable. Recently, the organization conducted wind speed tests at a particular site. Based on a sample of n=33 wind speed recordings (taken at random intervals), the wind speed at the site averaged 22.8 mph, with a standard deviation of 4.3 mph. To determine whether the site meets the organization's requirements, perform the following hypothesis test at the 1% significance level and state your conclusion. Ho: μ = 22 HA: μ > 22

a) At α = .01, there is sufficient evidence to conclude the true mean wind speed at the site exceeds 22 mph.

b) At α = .01, there is not sufficient evidence to conclude the true mean wind speed at the site exceeds 22 mph.

c) We are 99% confident that the site meets the organization's requirements.

d) We are 99% confident that the site does not meet the organization's requirements

Answer #1

A national organization has been working with utilities
throughout the nation to find sites for large wind machines that
generate electricity. Wind speeds must average more than 13 miles
per hour (mph) for a site to be acceptable. Recently, the
organization conducted wind speed tests at a particular site. To
determine whether the site meets the organization's requirements,
consider the test, where Î¼ is the true mean wind speed at the
site. Suppose the observed significance level (p-value) of the...

A national organization has been working with utilities
throughout the nation to find sites for large wind machines that
generate electricity. Wind speeds must average more than 10 miles
per hour (mph) for a site to be acceptable. Recently, the
organization conducted wind speed tests at a particular site. To
determine whether the site meets the organization's requirements,
consider the test, where μ is the true mean wind speed at
the site and Suppose the observed significance level
(p-value) of the...

The National Aeronautics and Space Administration (NASA) has
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State your conclusion to the hypothesis test. The mayor of a
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The football players continue their hypothesis test by finding
the p-value to make a conclusion about the null hypothesis.
H0:μ=275; Ha:μ<275, which is a left-tailed test.
α=0.025.
z0=−1.49
Which is the correct conclusion of Jose's one-mean hypothesis
test at the 2.5% significance level?
Use the Standard Normal Table for the critical values:
z
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
...
...
...
...
...
...
...
...
...
...
...
−1.6
0.0455
0.0465
0.0475
0.0485
0.0495...

Use the following information to answer questions
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a. when it is based on something other than observation
b. when it can be tested and is refutable
c. when it relies on anecdotal evidence
d. when it relies on mystical explanations
e. All hypotheses are considered scientific until experiments
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3.
Of the following, which is the earliest step in the scientific
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a. generating a hypothesis
b. analyzing data
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What tools could AA leaders have used to increase their
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???ALASKA AIRLINES: NAVIGATING CHANGE
In the autumn of 2007, Alaska Airlines executives adjourned at
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