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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.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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(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.)
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