A poll of 2,040 randomly selected adults showed that 89% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the normal distribution as an approximations to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e). Test of p=0.92 vs p*0.92 Sample X 1 N 2,040 Sample p 0.893137 95% CI (0.879731,0.906543) Z-Value -4.47 P-Value 0.000 1822 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test O Left-tailed test OTwo-tailed test b. What is the test statistic? The test statistic is (Round to two decimal places as needed.) c. What is the P-value? The P-value is (Round to three decimal places as needed)
A poll of 2,040 randomly selected adults showed that 89% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the normal distribution as an approximations to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e). Test of p=0.92 vs p*0.92 Sample X 1 N 2,040 Sample p 0.893137 95% CI (0.879731,0.906543) Z-Value -4.47 P-Value 0.000 1822 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test O Left-tailed test OTwo-tailed test b. What is the test statistic? The test statistic is (Round to two decimal places as needed.) c. What is the P-value? The P-value is (Round to three decimal places as needed)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:A poll of 2,040 randomly selected adults showed that 89% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the normal distribution as an approximation
to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e).
Test of p=0.92 vs p *0.92
95% CI
Sample X
1
N
2,040
Sample p
0.893137
Z-Value
- 4.47
P-Value
0.000
1822
(0.879731,0.906543)
c. What is the P-value?
The P-value is
(Round to three decimal places as needed.)
d. What is the null hypothesis and what do you conclude about it?
Identify the null hypothesis.
OA. Ho: p=0.92
OB. Ho p>0.92
OC. Hop=0.92
OD. Ho: p<0.92
Transcribed Image Text:A poll of 2,040 randomly selected adults showed that 89% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the normal distribution as an approximation
to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e).
Test of p=0.92 vs p *0.92
Sample X
95% CI
N
1822 2,040
Sample p
0.893137
Z-Value
-4.47
P-Value
0.000
(0.879731,0.906543)
a. Is the test two-tailed, left-tailed, or right-tailed?
O Right tailed test
O Left-tailed test
OTwo-tailed test
b. What is the test statistic?
The test statistic is
(Round to two decimal places as needed.)
c. What is the P-value?
The P-value is
(Round to three decimal places as needed.)
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