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 First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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
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49°F
IQ
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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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