Fundamentals of Statistics (5th Edition)
5th Edition
ISBN: 9780134508306
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter 10, Problem 8RE
In Problems 7 and 8, test the hypothesis at the α = 0.05 level of significance, using (a) the classical approach and (b) the P-value approach. Be sure to verify the requirements of the test.
8. H0 : p = 0.35 versus H1 : p ≠ 0.35
n = 420; x = 138
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If you test the (one sample) null hypothesis that the population proportion p ≤ 0.3 and you get the test statistic value of z = -0.98, then using a 5% ignificance level,
Group of answer choices
the alternative hypothesis looks believable.
the null hypothesis looks believable.
the null and alternative hypotheses both look believable.
none of the above.
If, in a sample of
n=30
selected from a normal population,
X=58
and
S=12,
what is your statistical decision if the level of significance,
α,
is
0.05,
the null hypothesis,
H0,
is
μ=50,
and the alternative hypothesis,
H1,
is μ≠50?
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Part 1
Determine the critical value(s).
The critical value(s) is(are)
enter your response here.
If, in a sample of n = 25 selected from a normal population, X= 60 and S= 10, what is your statistical decision if the level of significance, a, is 0.01, the nullI
hypothesis, Ho, is µ= 50, and the alternative hypothesis, H,, is µ# 50?
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-...
Determine the critical value(s).
The critical value(s) is(are).
(Round to four decimal places as needed. Use a comma to separate answers as needed.)
Chapter 10 Solutions
Fundamentals of Statistics (5th Edition)
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