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A medical researcher says that less than 72% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 70% think that healthy children should be required to be vaccinated. At a=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. C More than % of aquits in the country think that neartny cniaren snouia de required to be vaccinated. Let p be the population proportion of successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. State Ho and H₂. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. Ho: p² 0.72 OC. Ho: ps OB. Ho: P< H₂:pz H₂: p< 0.72 H₂:p> OD. Ho:p> H₂:ps OE. Ho: P H₂: p= OF Hop H₂:p* (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. = -2.33 (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.) OA. The rejection region is <<< OB. The rejection region is z>. and z> OC. The rejection regions are z< D. The rejection region is z< -2.33 (c) Find the standardized test statistic z. (Round to two decimal places as needed.)

A medical researcher says that less than 72% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 70% think that healthy children should be required to be vaccinated. At a=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. C More than % of aquits in the country think that neartny cniaren snouia de required to be vaccinated. Let p be the population proportion of successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. State Ho and H₂. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. Ho: p² 0.72 OC. Ho: ps OB. Ho: P< H₂:pz H₂: p< 0.72 H₂:p> OD. Ho:p> H₂:ps OE. Ho: P H₂: p= OF Hop H₂:p* (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. = -2.33 (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.) OA. The rejection region is <<< OB. The rejection region is z>. and z> OC. The rejection regions are z< D. The rejection region is z< -2.33 (c) Find the standardized test statistic z. (Round to two decimal places 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
A medical researcher says that less than 72% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 70% think that healthy children should be required to be vaccinated. At a = 0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. G More than % or aquits in the country think that neartny cniaren snouia de required to be vaccinated. Let p be the population proportion of successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. State Ho and H₂. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. Ho: p² 0.72 OC. Ho: ps OB. Ho: P< H₂:pz H₂: p< 0.72 H₂:p> Of Hop OD. Ho:p> H₂:ps OE. Ho: P H₂: p= (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. = -2.33 (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.) OA. The rejection region is <<< . OB. The rejection region is z> and z>. OC. The rejection regions are z< D. The rejection region is z< -2.33 (c) Find the standardized test statistic z. (Round to two decimal places as needed.) H₂:p*
Transcribed Image Text:A medical researcher says that less than 72% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 70% think that healthy children should be required to be vaccinated. At a = 0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. G More than % or aquits in the country think that neartny cniaren snouia de required to be vaccinated. Let p be the population proportion of successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. State Ho and H₂. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. Ho: p² 0.72 OC. Ho: ps OB. Ho: P< H₂:pz H₂: p< 0.72 H₂:p> Of Hop OD. Ho:p> H₂:ps OE. Ho: P H₂: p= (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. = -2.33 (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.) OA. The rejection region is <<< . OB. The rejection region is z> and z>. OC. The rejection regions are z< D. The rejection region is z< -2.33 (c) Find the standardized test statistic z. (Round to two decimal places as needed.) H₂:p*
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