Statistical Reasoning for Everyday Life (5th Edition)
5th Edition
ISBN: 9780134494043
Author: Jeff Bennett, William L. Briggs, Mario F. Triola
Publisher: PEARSON
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Textbook Question
Chapter 9.2, Problem 18E
Using Critical Values to Reject or Not Reject. In Exercises 13–20, find the value of the standard score, z, and determine whether to reject the null hypothesis at a 0.05 significance level. The critical values can be found in Tables 9.1 and 9.2. Is the alternative hypothesis supported?
18. H0: μ = 26.2 km, Ha: μ ≠ 26.2 km, n = 64,
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Test claim that the proportion of men who own cats is smaller than 50% at the .005 significance level. The null alternative hypothesis would be?
The test is: two -tailed, left-tailed,or right-tailed?
Based on a sample of 25 people, 44% owned cats : the test statistics is ( in two decimal place)?
The critical value is ( in Two decimal place)?
Based on theis ww: fail to reject the null hypothesis or reject the null hypothesis?
Z-Test
Z-Test
Inpt: Data Stats
μ≠60
μ0:60
z=−1.97202659
σ:3.75
p=0.04860657
x:58.75
x=58.75
n:35
n=35
μ:≠μ0<μ0>μ0
Calculate Draw
Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of
α=0.10.
Choose the correct answer below.
A.
Since the P-value is
less
than
α,
reject
the null hypothesis.
B.
Since the P-value is
greater
than
α,
fail to reject
the null hypothesis.
C.
Since the P-value is
greater
than
α,
reject
the null hypothesis.
D.
Since the P-value is
less
than
α,
fail to reject
the null hypothesis.
What is the correct conclusion for the hypothesis test?
A.
Reject
H0;
the data
do not
provide sufficient evidence to conclude that the percentage of adults who approve of labor unions has decreased since 1936.
B.
Do not reject
H0;
the data
do not
provide sufficient evidence to conclude that the percentage of adults who approve of labor unions has decreased since 1936.
C.
Do not reject
H0;
the data
do
provide sufficient evidence to conclude that the percentage of adults who approve of labor unions has decreased since 1936.
D.
Reject
H0;
the data
do
provide sufficient evidence to conclude that the percentage of adults who approve of labor unions has decreased since 1936.
b. What are the hypotheses for the one-proportion z-test?
H0:
p=enter your response here;
Ha:
p
▼
greater than>
not equals≠
equals=
less than<
enter your response here
(Type integers or decimals.)
What is the test statistic?
z=enter your…
Chapter 9 Solutions
Statistical Reasoning for Everyday Life (5th Edition)
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