A medical researcher says that less than 86​% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that​ country, 84​% think that healthy children should be required to be vaccinated. At α=0.05​, is there enough evidence to support 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. Less than 8686​% of adults in the country think that healthy children should be required to be vaccinated.   B. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not nothing​%.   C. nothing​% of adults in the country think that healthy children should be required to be vaccinated.   D. More than nothing​% of adults in the country think that healthy children should be required to be vaccinated. Your answer is not correct. Let p be the population proportion of​ successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. 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≥0.860.86 Ha​: p<0.860.86   B. H0​: p>nothing Ha​: p≤nothing   C. H0​: p=nothing Ha​: p≠nothing   D. H0​: p≤nothing Ha​: p>nothing Your answer is not correct.   E. H0​: p≠nothing Ha​: p=nothing   F. H0​: p

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A medical researcher says that less than
86​%
of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of
300
adults in that​ country,
84​%
think that healthy children should be required to be vaccinated. At
α=0.05​,
is there enough evidence to support 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.
Less than
8686​%
of adults in the country think that healthy children should be required to be vaccinated.
 
B.
The percentage of adults in the country who think that healthy children should be required to be vaccinated is not
nothing​%.
 
C.
nothing​%
of adults in the country think that healthy children should be required to be vaccinated.
 
D.
More than
nothing​%
of adults in the country think that healthy children should be required to be vaccinated.
Your answer is not correct.
Let p be the population proportion of​ successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. 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≥0.860.86
Ha​:
p<0.860.86
 
B.
H0​:
p>nothing
Ha​:
p≤nothing
 
C.
H0​:
p=nothing
Ha​:
p≠nothing
 
D.
H0​:
p≤nothing
Ha​:
p>nothing
Your answer is not correct.
 
E.
H0​:
p≠nothing
Ha​:
p=nothing
 
F.
H0​:
p<nothing
Ha​:
p≥nothing
​(b) Find the critical​ value(s) and identify the rejection​ region(s).
 
Identify the critical​ value(s) for this test.
 
z0=nothing
​(Round to two decimal places as needed. Use a comma to separate answers as​ needed.)
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