Elementary Statistics: Picturing the World (7th Edition)
7th Edition
ISBN: 9780134683416
Author: Ron Larson, Betsy Farber
Publisher: PEARSON
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Question
Chapter 8.3, Problem 13E
a.
To determine
To identify: The claim and state
b.
To determine
To find: The critical value and rejection regions.
c.
To determine
To find: The value of
d.
To determine
To find: The standardized test statistic t.
e.
To determine
To decide: Whether to reject or fail to reject the null hypothesis when the level of significance
f.
To determine
To interpret: The decision in the context of the original claim.
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Check out a sample textbook solutionStudents have asked these similar questions
P-values In Exercises 17–20, do the following:
a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.
b. Find the P- value. (See Figure 8-3 on page 364.)
c. Using a significance level of α = 0.05, should we reject H0 or should we fail to reject H0?
The test statistic of z = 1.00 is obtained when testing the claim that p > 0.3.
(a) Write the claim mathematically and identify
H0
and
Ha.
(b) Find the standardized test statistic z, and its corresponding area.
(c) Find the P-value.
(d) Decide whether to reject or fail to reject the null hypothesis.
(e) Interpret your decision in the context of the original claim.
In a statistical test, we have a choice of a left-tailed test, a right-tailed test, or a two-tailed test. Is it the null hypothesis or the alternate hypothesis that determines which type of test is used? Select the correct answer:
The alternative hypothesis because it specifies what the level of significance of the test will be.
The alternative hypothesis because it specifies the region of interest for the parameter in question.
The null hypothesis because it specifies the region of interest for the parameter in question.
The null hypothesis because it specifies what the level of significance of the test will be.
Chapter 8 Solutions
Elementary Statistics: Picturing the World (7th Edition)
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