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A medical researcher says that less than 82% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 500 adults in that country, 78% think that healthy children should be required to be vaccinated. At a= 0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. ....

A medical researcher says that less than 82% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 500 adults in that country, 78% think that healthy children should be required to be vaccinated. At a= 0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. ....

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 medical researcher says that less than 82% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 500 adults in that country, 78% think that healthy children should be required to be vaccinated. At a= 0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. 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.) A. The rejection region is z < -1.64. O B. The rejection regions are z< and z> OC. The rejection region is <z< O D. The rejection region is z> (c) Find the standardized test statistic z. z-D (Round to two decimal places as needed.) Clear all Check answer Get more help - View an example Help me solve this 49°F IQ OK a ere to search d田
Transcribed Image Text:A medical researcher says that less than 82% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 500 adults in that country, 78% think that healthy children should be required to be vaccinated. At a= 0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. 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.) A. The rejection region is z < -1.64. O B. The rejection regions are z< and z> OC. The rejection region is <z< O D. The rejection region is z> (c) Find the standardized test statistic z. z-D (Round to two decimal places as needed.) Clear all Check answer Get more help - View an example Help me solve this 49°F IQ OK a ere to search d田
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