A 2012 survey of 2247 American adults indicates that 16% of cell phone owners do their browsing on their phone rather than a computer or othe device. (a) According to an online article, a report from a mobile research company indicates that 40 percent of Chinese mobile web users only access the internet through their cell phones. Conduct a hypothesis test to determine if these data provide strong evidence that the proportion of Americans who only use their cell phones to access the internet is different than the Chinese proportion of 40%. Use a significance level of a = 0.1. Họ : prop= HẠ : prop not = v p-value: Based on this information, we may Reject the Null Hypothesis

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
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A 2012 survey of 2247 American adults indicates that 16% of cell phone owners do their browsing on their phone rather than a computer or other
device.
(a) According to an online article, a report from a mobile research company indicates that 40 percent of Chinese mobile web users only access the
internet through their cell phones. Conduct a hypothesis test to determine if these data provide strong evidence that the proportion of Americans
who only
use their cell phones to access the internet is different than the Chinese proportion of 40%. Use a significance level of a = 0.1.
Но : prop %3
На : prop not %3D v
p-value:
Based on this information, we may Reject the Null Hypothesis
(b) Calculate a 90% confidence interval for the proportion of Americans who think the Civil War is still relevant.
Transcribed Image Text:A 2012 survey of 2247 American adults indicates that 16% of cell phone owners do their browsing on their phone rather than a computer or other device. (a) According to an online article, a report from a mobile research company indicates that 40 percent of Chinese mobile web users only access the internet through their cell phones. Conduct a hypothesis test to determine if these data provide strong evidence that the proportion of Americans who only use their cell phones to access the internet is different than the Chinese proportion of 40%. Use a significance level of a = 0.1. Но : prop %3 На : prop not %3D v p-value: Based on this information, we may Reject the Null Hypothesis (b) Calculate a 90% confidence interval for the proportion of Americans who think the Civil War is still relevant.
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