A research center claims that more than 29% of employees in a certain country have changed jobs in the past three years. In a random sample of 280 people fro that country, 98 have changed jobs in the past three years. At a = 0.10, is there enough evidence to support the center's claim? Complete parts (a) through (e) be (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. The percentage of employees in the country who have changed jobs in the past three years is not O B. More than % of employees in the country have changed jobs in the past three years. OC. % of employees in the country have changed jobs in the past three years. O D. At most % of employees in the country have changed jobs in the past three years. Let p be the population proportion of successes, where a success is an employee in the country who has changed jobs in the past three years. Sta H, and Ha. 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: ps O B. Ho:p* Ha:p = OC. Ho: p> Ha: p> H3:ps O D. Ho: p= O E. Ho:Pz OF. Ho:p< Ha:p= Ha: p< H3:p2 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo =0 (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.) O A. The rejection region is z> O B. The rejection regions are z< and z> OC. The rejection region is
A research center claims that more than 29% of employees in a certain country have changed jobs in the past three years. In a random sample of 280 people fro that country, 98 have changed jobs in the past three years. At a = 0.10, is there enough evidence to support the center's claim? Complete parts (a) through (e) be (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. The percentage of employees in the country who have changed jobs in the past three years is not O B. More than % of employees in the country have changed jobs in the past three years. OC. % of employees in the country have changed jobs in the past three years. O D. At most % of employees in the country have changed jobs in the past three years. Let p be the population proportion of successes, where a success is an employee in the country who has changed jobs in the past three years. Sta H, and Ha. 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: ps O B. Ho:p* Ha:p = OC. Ho: p> Ha: p> H3:ps O D. Ho: p= O E. Ho:Pz OF. Ho:p< Ha:p= Ha: p< H3:p2 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo =0 (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.) O A. The rejection region is z> O B. The rejection regions are z< and z> OC. The rejection region is
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A research center claims that more than 29% of employees in a certain country have changed jobs in the past three years. In a random sample of 280 people from
that country, 98 have changed jobs in the past three years. At a = 0.10, is there enough evidence to support the center's claim? Complete parts (a) 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. The percentage of employees in the country who have changed jobs in the past three years is not
B. More than
% of employees in the country have changed jobs in the past three years.
C.
% of employees in the country have changed jobs in the past three years.
D.
At most
% of employees in the country have changed jobs in the past three years.
Let p be the population proportion of successes, where a success is an employee in the country who has changed jobs in the past three years. State
H, and Ha. 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: ps
O B. Ho: p=
OC. Ho: p>
Ha: p>
Ha:p=
H3i ps
O D. Ho:p=
O E. Ho: P2
OF. Ho: p<
Ha:p=
Hạ: p<
(b) Find the critical value(s) and identify the rejection region(s).
Identify the critical value(s) for this test.
Zo =
(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.)
O A. The rejection region is z>
O B. The rejection regions are z<
and z>
OC. The rejection region is
O D. The rejection region is z<
(c) Find the standardized test statistic z.
(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.
V the null hypothesis. There
V enough evidence to
V the center's claim.
OO OO
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