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A research center claims that at least 25% of adults in a certain country think that their taxes will be audited. In a random sample of 700 adults in that country in a recent year, 20% 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 part through (e) below. (a) Identify the claim and state Hg and H, Identify the claim in this scenario. Select the correct choice below and fil in the answer box to complete your choice (Type an integer or a decimal. Do not round) OA. Less than % of adults in the country think that their taxes will be audited. OB. % % of adults in the country think that their taxes will be audited. OC. The percentage of adults in the country who think that their taxes will be audited is not OD. At least % 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 audted. State Hg and H, Select the correct choice below and fil in the answer boxes to complete your choice. (Round to two decimal places as needed.) OB. H p OA Hi p2 H, p OD. H p н, р OC. H p> H, ps OF. H pe H, p2 = H, p OE H ps H, p> (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test (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 fl in the answer box(es) to complete your choice. (Round to two decimal places as needed) OA. The rejection regions are z< and z> OB. The rejection region is z> O. The rejection region is z OD. The rejection region is (c) Find the standardized test statistic z (Round to two decimal places as needed)

A research center claims that at least 25% of adults in a certain country think that their taxes will be audited. In a random sample of 700 adults in that country in a recent year, 20% 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 part through (e) below. (a) Identify the claim and state Hg and H, Identify the claim in this scenario. Select the correct choice below and fil in the answer box to complete your choice (Type an integer or a decimal. Do not round) OA. Less than % of adults in the country think that their taxes will be audited. OB. % % of adults in the country think that their taxes will be audited. OC. The percentage of adults in the country who think that their taxes will be audited is not OD. At least % 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 audted. State Hg and H, Select the correct choice below and fil in the answer boxes to complete your choice. (Round to two decimal places as needed.) OB. H p OA Hi p2 H, p OD. H p н, р OC. H p> H, ps OF. H pe H, p2 = H, p OE H ps H, p> (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test (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 fl in the answer box(es) to complete your choice. (Round to two decimal places as needed) OA. The rejection regions are z< and z> OB. The rejection region is z> O. The rejection region is z OD. The rejection region is (c) Find the standardized test statistic z (Round to two decimal places 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
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5. A research center claims that at least 25% of adults in a certain country think that their taxes will be audited. In a random sample of 700 adults in that country in a recent year, 20% say they are concerned that their taxes will be audited. At α = 0.01, is there enough evidence to reject the center’s claim? Complete parts (a) through (b) below. (a) Identify the claim and state \( H_0 \) and \( H_1 \). 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.) - A. Less than \(\_\_\_\_\_\_\) % of adults in the country think that their taxes will be audited. - B. \(\_\_\_\_\_\_\) % of adults in the country think that their taxes will be audited. - C. The percentage of adults in the country who think that their taxes will be audited is not \(\_\_\_\_\_\_\) %. - D. At least \(\_\_\_\_\_\_\) % 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 \( H_0 \) and \( H_1 \). Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) - A. - \( H_0 \): \( p = \_\_\_\_\_\_\) - \( H_1 \): \( p > \_\_\_\_\_\_\) - B. - \( H_0 \): \( p = \_\_\_\_\_\_\) - \( H_1 \): \( p < \_\_\_\_\_\_\) - C. - \( H_0 \): \( p > \_\_\_\_\_\_\) - \( H_1 \): \( p \leq \_\_\_\_\_\_\) - D. - \( H_0 \): \( p \leq \_\_\_\_\_\_\) - \( H_1 \): \( p > \_\_\_\_\_\_\) - E. - \( H
Transcribed Image Text:5. A research center claims that at least 25% of adults in a certain country think that their taxes will be audited. In a random sample of 700 adults in that country in a recent year, 20% say they are concerned that their taxes will be audited. At α = 0.01, is there enough evidence to reject the center’s claim? Complete parts (a) through (b) below. (a) Identify the claim and state \( H_0 \) and \( H_1 \). 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.) - A. Less than \(\_\_\_\_\_\_\) % of adults in the country think that their taxes will be audited. - B. \(\_\_\_\_\_\_\) % of adults in the country think that their taxes will be audited. - C. The percentage of adults in the country who think that their taxes will be audited is not \(\_\_\_\_\_\_\) %. - D. At least \(\_\_\_\_\_\_\) % 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 \( H_0 \) and \( H_1 \). Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) - A. - \( H_0 \): \( p = \_\_\_\_\_\_\) - \( H_1 \): \( p > \_\_\_\_\_\_\) - B. - \( H_0 \): \( p = \_\_\_\_\_\_\) - \( H_1 \): \( p < \_\_\_\_\_\_\) - C. - \( H_0 \): \( p > \_\_\_\_\_\_\) - \( H_1 \): \( p \leq \_\_\_\_\_\_\) - D. - \( H_0 \): \( p \leq \_\_\_\_\_\_\) - \( H_1 \): \( p > \_\_\_\_\_\_\) - E. - \( H
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