A poll of 2,115 randomly selected adults showed that 87% of them own cell phones. The technology display below from a test of the claim that 94% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e). Test of p = 0.94 vs p *0.94 Sample X N 1 1844 2,115 Sample p 0.871868 95% CI (0.853147,0.890588) a. Is the test two-tailed, left-tailed, or right-tailed? Z-Value - 13.19 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
icon
Related questions
Question
A poll of 2,115 randomly selected adults showed that 87% of them own cell phones. The technology display below results
from a test of the claim that 94% of adults own cell phones. Use the normal distribution as an approximation to the
binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e).
Test of p = 0.94 vs p *0.94
Sample X
N
1
1844 2,115
Sample p
0.871868
95% CI
(0.853147,0.890588)
a. Is the test two-tailed, left-tailed, or right-tailed?
Z-Value
- 13.19
P-Value
0.000
Transcribed Image Text:A poll of 2,115 randomly selected adults showed that 87% of them own cell phones. The technology display below results from a test of the claim that 94% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e). Test of p = 0.94 vs p *0.94 Sample X N 1 1844 2,115 Sample p 0.871868 95% CI (0.853147,0.890588) a. Is the test two-tailed, left-tailed, or right-tailed? Z-Value - 13.19 P-Value 0.000
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman