A research center claims that at least 30% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in a recent year, 25% say they are concerned that their taxes will be audited. At a = 0.01, is there enough evidence to reject the center's claim? Com through (e) below. (a) Identify the claim and state Ho 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.) O A. % of adults in the country think that their taxes will be audited. O B. Less than % of adults in the country think that their taxes will be audited. O C. At least 30 % of adults in the country think that their taxes will be audited. O D. The percentage of adults in the country who think that their taxes will be audited is not %. Let p be the population proportion of successes, where a success is an adult in the country who thinks that their taxes will be audited. State H, and the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. Ho p+ O B. Ho: p= C. Ho p2 H:n= H Hnc

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A research center claims that at least 30% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in
a recent year, 25% say they are concerned that their taxes will be audited. At a=0.01, is there enough evidence to reject the center's claim? Complete parts (a)
through (e) below.
(a) Identify the claim and state H, and H,
a
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.)
% of adults in the country think that their taxes will be audited.
OB. Less than
% of adults in the country think that their taxes will be audited.
irar
C At least 30 % of adults in the country think that their taxes will be audited.
D. The percentage of adults in the country who think that their taxes will be audited is not
%.
Copy
ager
Let p be the population proportion of successes, where a success is an adult in the country who thinks that their taxes will be audited. State H, and H, Select
the correct choice below and fill in the answer boxes to complete your choice.
(Round to two decimal places as needed.)
O A. Ho pt
O B. Ho p=
C. Ho p2
PDI
Ha p=
H3: p#
H3 p<
lichae
O D. Ho P>
O E. Ho P<
OF.
. H9 ps
Ha ps
Ha p2
Ha p>
Radio-li
(1,1)
More
PD
Click to select and enter your answer(s) and then click Check Answer.
202
Inciden
4
parts
remaining
Clear All
Final Check
Riley LAMA
Transcribed Image Text:A research center claims that at least 30% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 25% say they are concerned that their taxes will be audited. At a=0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H, and H, a 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.) % of adults in the country think that their taxes will be audited. OB. Less than % of adults in the country think that their taxes will be audited. irar C At least 30 % of adults in the country think that their taxes will be audited. D. The percentage of adults in the country who think that their taxes will be audited is not %. Copy ager Let p be the population proportion of successes, where a success is an adult in the country who thinks that their taxes will be audited. State H, and H, Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. Ho pt O B. Ho p= C. Ho p2 PDI Ha p= H3: p# H3 p< lichae O D. Ho P> O E. Ho P< OF. . H9 ps Ha ps Ha p2 Ha p> Radio-li (1,1) More PD Click to select and enter your answer(s) and then click Check Answer. 202 Inciden 4 parts remaining Clear All Final Check Riley LAMA
Expert Solution
Step 1

Claim:

C. At least 30% of adults in the country think that their taxes will be audited.

 

The null and alternative hypothesis is,

This corresponds to a left-tailed test.

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