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 300 adults in that country, 78% think that healthy children should be required to be accinated. At a = 0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. complete your choice. Round to two decimal places as needed.) OA. Ho: p O B. Ho: p> c. Họ: pz 0.82 Haip= Hips OE Ho: p= H:p< 0.82 O D. Ho: p< OF. Ho: ps H:p> H: p2 (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Z,= -1.28 (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.) O A. The rejection regions are z< and z> O B. The rejection region is (c) Find the standardized test statistic z. (Round to two decimal places as needed.)

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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
vaccinated. At a =0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below.
be vaccinated. In a random sample of 300 adults in that country, 78% think that healthy children should be required to be
complete your choice.
(Round to two decimal places as needed.)
O A. Ho: p*
O B. Ho: p>
c. Họ: pZ 0.82
Ha:p=
H:ps
H:p< 0.82
O D. Ho: p<
O E. Ho: p=
OF. Ho:ps
H:p2
H: p>
(b) Find the critical value(s) and identify the rejection region(s).
Identify the critical value(s) for this test.
Z0 = - 1.28
(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.)
O A. The rejection regions are z<
and z>
O B. The rejection region is <z<.
Yc. The rejection region is z< -1.28
O D. The rejection region is z>.
(c) Find the standardized test statistic z.
(Round to two decimal places as needed.)
Transcribed Image Text:A medical researcher says that less than 82% of adults in a certain country think that healthy children should be required vaccinated. At a =0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. be vaccinated. In a random sample of 300 adults in that country, 78% think that healthy children should be required to be complete your choice. (Round to two decimal places as needed.) O A. Ho: p* O B. Ho: p> c. Họ: pZ 0.82 Ha:p= H:ps H:p< 0.82 O D. Ho: p< O E. Ho: p= OF. Ho:ps H:p2 H: p> (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Z0 = - 1.28 (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.) O A. The rejection regions are z< and z> O B. The rejection region is <z<. Yc. The rejection region is z< -1.28 O D. The rejection region is z>. (c) Find the standardized test statistic z. (Round to two decimal places as needed.)
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