K A poll of 2,034 randomly selected adults showed that 97% 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 N 1 1976 2,034 Sample p 0.971485 Z-Value 95% CI (0.964252,0.978718) 8.56 P-Value 0.000
K A poll of 2,034 randomly selected adults showed that 97% 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 N 1 1976 2,034 Sample p 0.971485 Z-Value 95% CI (0.964252,0.978718) 8.56 P-Value 0.000
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:K
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2
A poll of 2,034 randomly selected adults showed that 97% 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
N
1
2.034
OA. Ho:p>0.92
OB. Ho: p=0.92
OC. Ho: p*0.92
OD. Ho: p<0.92
W
S
1976
X
mmand
H
3
Choose the correct answer below.
OA. Fail to reject the null hypothesis because the P-value is greater than the significance level, a
OB. Reject the null hypothesis because the P-value is greater than the significance level, a
OC. Reject the null hypothesis because the P-value is less than or equal to the significance level, a
OD. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a
e. What is the final conclusion?
8.0
F3
OA. There is not sufficient evidence to warrant rejection of the claim that 92% of adults own a cell phone.
OB. There is not sufficient evidence to support the claim that 92% of adults own a cell phone.
OC. There is sufficient evidence to warrantirejection of the claim that 92% of adults own a cell phone.
OD. There is sufficient evidence to support the claim that 92% of adults own a cell phone.
E
D
Sample p
0.971485
C
$
4
Q
95% CI
R
F
(0.964252,0.978718) 8.56
%
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Z-Value
G
6
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P-Value
0.000
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Transcribed Image Text:K
A poll of 2,034 randomly selected adults showed that 97% 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).
2
Z
Test of p=0.92 vs p *0.92
Sample X
N
2,034
1
2
1976
a. Is the test two-tailed, left-tailed, or right-tailed?
O Right tailed test
OTwo-tailed test
O Left-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?
W
S
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. Ho: p*0.92
OD. Ho: p<0.92
X
H
command
#
3
80
F3
Sample p
0.971485
E
D
C
$
4
95% CI
(0.964252,0.978718)
R
F
%
5
V
♥
T
G
6
Z-Value
8.56
MacBook Air
B
Y
P-Value
0.000
H
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