An education researcher claims that at most 3​% of working college students are employed as teachers or teaching assistants. In a random sample of 500 working college​ students, 4​% are employed as teachers or teaching assistants. At α=0.05​, is there enough evidence to reject the​ researcher's claim? Complete parts​ (a) through​ (e) below.       ​(a) Identify the claim and state H0 and Ha.   Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. ​(Type an integer or a decimal. Do not​ round.)   A. enter your response here​% of working college students are employed as teachers or teaching assistants.   B. At most enter your response here​% of working college students are employed as teachers or teaching assistants.   C. More than enter your response here​% of working college students are employed as teachers or teaching assistants.   D. The percentage of working college students who are employed as teachers or teaching assistants is not enter your response here​%. Let p be the population proportion of​ successes, where a success is a working college student who is employed as a teacher or teaching assistant. State H0 and Ha. Select the correct choice below and fill in the answer boxes to complete your choice. ​(Round to two decimal places as​ needed.)   A. H0​: penter your response here Ha​: p≤enter your response here   C. H0​: p=enter your response here Ha​: p≠enter your response here   D. H0​: p≥enter your response here Ha​: penter your response here   F. H0​: p≠enter your response here Ha​: p=enter your response here ​(b) Find the critical​ value(s) and identify the rejection​ region(s).   Identify the critical​ value(s) for this test.   z0=enter your response here ​(Round to two decimal places as needed. Use a comma to separate answers as​ needed.) Identify the rejection​ region(s). Select the correct choice below and fill in the answer​ box(es) to complete your choice. ​(Round to two decimal places as​ needed.)   A. The rejection region is zenter your response here.   C. The rejection region is enter your response hereenter your response here. ​(c) Find the standardized test statistic z.   z=enter your response here ​(Round to two decimal places as​ needed.) ​(d) Decide whether to reject or fail to reject the null hypothesis and​ (e) interpret the decision in the context of the original claim.   ▼   Reject Fail to reject the null hypothesis. There ▼   is is not enough evidence to ▼   support reject the​ researcher's claim.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.2: Polynomial Functions
Problem 96E: What is the purpose of the Intermediate Value Theorem?
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An education researcher claims that at most
3​%
of working college students are employed as teachers or teaching assistants. In a random sample of
500
working college​ students,
4​%
are employed as teachers or teaching assistants. At
α=0.05​,
is there enough evidence to reject the​ researcher's claim? Complete parts​ (a) through​ (e) below.
 
 
 
​(a) Identify the claim and state
H0
and
Ha.
 
Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice.
​(Type an integer or a decimal. Do not​ round.)
 
A.
enter your response here​%
of working college students are employed as teachers or teaching assistants.
 
B.
At most
enter your response here​%
of working college students are employed as teachers or teaching assistants.
 
C.
More than
enter your response here​%
of working college students are employed as teachers or teaching assistants.
 
D.
The percentage of working college students who are employed as teachers or teaching assistants is not
enter your response here​%.
Let p be the population proportion of​ successes, where a success is a working college student who is employed as a teacher or teaching assistant. State
H0
and
Ha.
Select the correct choice below and fill in the answer boxes to complete your choice.
​(Round to two decimal places as​ needed.)
 
A.
H0​:
p<enter your response here
Ha​:
p≥enter your response here
 
B.
H0​:
p>enter your response here
Ha​:
p≤enter your response here
 
C.
H0​:
p=enter your response here
Ha​:
p≠enter your response here
 
D.
H0​:
p≥enter your response here
Ha​:
p<enter your response here
 
E.
H0​:
p≤enter your response here
Ha​:
p>enter your response here
 
F.
H0​:
p≠enter your response here
Ha​:
p=enter your response here
​(b) Find the critical​ value(s) and identify the rejection​ region(s).
 
Identify the critical​ value(s) for this test.
 
z0=enter your response here
​(Round to two decimal places as needed. Use a comma to separate answers as​ needed.)
Identify the rejection​ region(s). Select the correct choice below and fill in the answer​ box(es) to complete your choice.
​(Round to two decimal places as​ needed.)
 
A.
The rejection region is
z<enter your response here.
 
B.
The rejection regions are
z<enter your response here
and
z>enter your response here.
 
C.
The rejection region is
enter your response here<z<enter your response here.
 
D.
The rejection region is
z>enter your response here.
​(c) Find the standardized test statistic z.
 
z=enter your response here
​(Round to two decimal places as​ needed.)
​(d) Decide whether to reject or fail to reject the null hypothesis and​ (e) interpret the decision in the context of the original claim.
 
 
Reject
Fail to reject
the null hypothesis. There
 
is
is not
enough evidence to
 
support
reject
the​ researcher's claim.
 
 
 
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