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A research center claims that at least 31% 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, 26% say they are concemed that their taxes will be audited. At a= 0.05, is there enough evidence to reject the center's claim? Complete parts (n) through (e) below. Hp< 0.31 Hp> H p (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo-1.65 (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 fil in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. The rejection region is (c) Find the standardized test statistic z z- -3.24 (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. Reject the null hypothesis. There is not enough evidence to support the center's claim.

A research center claims that at least 31% 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, 26% say they are concemed that their taxes will be audited. At a= 0.05, is there enough evidence to reject the center's claim? Complete parts (n) through (e) below. Hp< 0.31 Hp> H p (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo-1.65 (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 fil in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. The rejection region is (c) Find the standardized test statistic z z- -3.24 (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. Reject the null hypothesis. There is not enough evidence to support the center's claim.

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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A research center claims that at least 31% 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, 26% say they are concermed 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. H:p< 0.31 Hi p> (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo- -1.65 (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 fil in (Round to two decimal places as needed.) answer box(es) to complete your choice. O A. The rejection region is <z< B. The rejection region is z< - 1.64 Oc. The rejection regions are z< and z>- O D. The rejection region is z> (c) Find the standardized test statistic z. z= -3.24 (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision the context of the original claim. Reject the null hypothesis. There is not enough evidence to support the center's claim.
Transcribed Image Text:A research center claims that at least 31% 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, 26% say they are concermed 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. H:p< 0.31 Hi p> (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo- -1.65 (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 fil in (Round to two decimal places as needed.) answer box(es) to complete your choice. O A. The rejection region is <z< B. The rejection region is z< - 1.64 Oc. The rejection regions are z< and z>- O D. The rejection region is z> (c) Find the standardized test statistic z. z= -3.24 (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision the context of the original claim. Reject the null hypothesis. There is not enough evidence to support the center's claim.
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