Homework Help is Here – Start Your Trial Now!
Math
Statistics
D- -1.64 Round to two decimal places as needed. Use a comma to separate answers as needed.)

D- -1.64 Round to two decimal places as needed. Use a comma to separate answers as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
(c) Find the standardized test statistic z. It’s not 2.14
A research center claims that at least 23% 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, 20% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence to reject 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 adults in the country who think that their taxes will be audited is not % GB. At least 23 % of adults in the country think that their taxes will be audited. O C. Less than % of adults in the country think that their taxes will be audited. O D. % of adults in the country think that their taxes will be audited. 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 Ho 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: p O B. Ho: p= OC. Ho: p< Ha:p= Ha: p* Ha: p2. O D. Ho: ps O E. Ho: p> Họ: p2 0.23 Ha: p> Ha: ps H:p< 0.23 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Z0 = - 1.64 (Round to two decimal places as needed. Use a comma separate answers as needed.)
Transcribed Image Text:A research center claims that at least 23% 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, 20% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence to reject 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 adults in the country who think that their taxes will be audited is not % GB. At least 23 % of adults in the country think that their taxes will be audited. O C. Less than % of adults in the country think that their taxes will be audited. O D. % of adults in the country think that their taxes will be audited. 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 Ho 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: p O B. Ho: p= OC. Ho: p< Ha:p= Ha: p* Ha: p2. O D. Ho: ps O E. Ho: p> Họ: p2 0.23 Ha: p> Ha: ps H:p< 0.23 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Z0 = - 1.64 (Round to two decimal places as needed. Use a comma separate answers as needed.)
A research center claims that at least 23% 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, 20% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. O A. Ho: p+ O B. Ho: p= O C. Họ: p< H:p= H: p2 OD. Ho: ps O E. Ho: p> F. Ho: pz 0.23 H:p> Hg:ps H:p< 0.23 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo = - 1.64 (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 regions are z< and z> O B. The rejection region is c. The rejection region is z< - 1.64. O D. The rejection region is z> (c) Find the standardized test statistic z. (Round to two decimal places as needed.)
Transcribed Image Text:A research center claims that at least 23% 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, 20% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. O A. Ho: p+ O B. Ho: p= O C. Họ: p< H:p= H: p2 OD. Ho: ps O E. Ho: p> F. Ho: pz 0.23 H:p> Hg:ps H:p< 0.23 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo = - 1.64 (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 regions are z< and z> O B. The rejection region is c. The rejection region is z< - 1.64. O D. The rejection region is z> (c) Find the standardized test statistic z. (Round to two decimal places as needed.)
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS