Question

A poll surveyed 1657 internet users and found that 855 of them had posted a photo or video online. Can you conclude that more than half of internet users have posted photos or videos online? Use the α=0.10 level of significance and the P-value method with the TI-84 Plus calculator.

a. State the appropriate null and alternate hypotheses

b. Compute the value of the test statistic.

c. Using α=0.10, can you conclude that more than half of internet users have posted a photo or video online?

d. state a conclusion

Answer #1

A poll surveyed 341 video gamers, and 109 of them said that they
prefer playing games on a console, rather than a computer or
hand-held device. An executive at a game console manufacturing
company claims that the proportion of gamers who prefer consoles
differs from 30%. Does the poll provide convincing evidence that
the claim is true? Use the α=0.10 level of significance and the
P-value method with the TI-84 Plus calculator
a. state null and alternative hypothesis. what tail...

The number of adult
Internet users who take photos or videos they have found online and
post them on social media continues to increase. Looking at only
adult Internet users, aged 18 and over, about 15% are 18-29 years
old, another 26% are 30-49 years old, and the remaining 59% are 50
and over. The Pew Internet and American Life Project finds that 68%
of Internet users aged 18-29 have posted photos or videos they have
found online, along with...

Game consoles: A poll surveyed 341 video gamers, and 85 of them
said that they prefer playing games on a console, rather than a
computer or hand-held device. An executive at a game console
manufacturing company claims that less than 26% of gamers prefer
consoles. Does the poll provide convincing evidence that the claim
is true? Use the a=0.10 level of significance and the -value method
with the TI-84 Plus calculator.
(a) State the appropriate null and alternate hypotheses.
Ho:...

A poll surveyed 341 video gamers, and113 of them said that they
prefer playing games on a console, rather than a computer or
hand-held device. An executive at a game console manufacturing
company claims that more than 28% of gamers prefer consoles. Does
the poll provide convincing evidence that the claim is true? Use
the α=0.10 level of significance and the P-value method with the
Cumulative Normal Distribution Table. (a) State the appropriate
null and alternate hypotheses. (b) Compute the...

Game consoles: A poll surveyed
341
video gamers, and
72
of them said that they prefer playing games on a console, rather
than a computer or hand-held device. An executive at a game console
manufacturing company claims that the proportion of gamers who
prefer consoles differs from
26%
. Does the poll provide convincing evidence that the claim is
true? Use the
=α0.05
level of significance and the
P
-value method with the TI-84 Plus calculator.
Part 1 of 4...

A poll conducted in 2012 asked a random sample of 1342 adults in
the United States how much confidence they had in banks and other
financial institutions. A total of 143 adults said that they had a
great deal of confidence. An economist claims that less than 14% of
U.S. adults have a great deal of confidence in banks. Can you
conclude that the economist's claim is true? Use both α=0.10 and
α=0.01 levels of significance and the P-value method...

Question 23:
Internet tax: In
2013
, the Gallup Poll asked
1019
U.S
. adults whether they believed that people should pay sales tax
on items purchased over the internet. Of these,
428
said they supported such a tax. Does the survey provide
convincing evidence that more than
39%
of U.S. adults favor an internet sales tax? Use the
=α0.05
level of significance and the
P
-value method with the TI-84 Plus calculator.
Part: 0 / 4
0 of 4...

In 2013, the Gallup Poll asked 1031 U.S. adults whether they
believed that people should pay sales tax on items purchased over
the internet. Of these, 443 said they supported such a tax. Does
the survey provide convincing evidence that less than 45% of U.S.
adults favor an internet sales tax? Use the α=0.05 level of
significance and the P-value method with the TI-84 Plus
calculator.
a. state null and alternative hypothesis. what tail is the
hypothesis test?
b. Compute...

A poll surveyed 341 video gamers, and 85 of them said that they
prefer playing games on a console, rather than a computer or
hand-held device. An executive at a game console manufacturing
company claims that less than 26% of gamers prefer consoles. Does
the poll provide convincing evidence that the claim is true? Use
the =α0.10 level of significance and the P-value method with the
Cumulative Normal Distribution Table.
(a) State the appropriate null and alternate hypotheses.
H0:
H1:...

A marketing manager for a cell phone company claims that the
percentage of children aged 8-12 who have cell phones differs from
61%. In a survey of 826 children aged 8-12 by a national consumers
group, 545 of them had cell phones. Can you conclude that the
manager's claim is true? Use the α=0.10 level of significance and
the P-value method with the TI-84 Plus calculator.
a. state null and alternative hypothesis. what tail is the
hypothesis test?
b. Compute...

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