Question
In: Statistics and Probability
A poll done for Newsweek found that 13% of Americans have seen or sensed the presence...
A poll done for Newsweek found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. It conducts it's own survey. Out of 125 Americans surveyed, only 10 had seen or sensed the presence of an angel. As a result of the contingent's survey, at a 5% level of significance, would you agree with the Newsweek poll?
In your answer, shoe your hypothesis, your calculated z or t score, and your decision to reject or fail to reject the null hypothesis.
Solutions
orchestra answered 2 years agoRelated Solutions
A poll done for Newsweek found that 13% of Americans have seen or sensed the presence...
A poll done for Newsweek found that 13% of Americans have seen
or sensed the presence of an angel. A contingent doubts that the
percent is really that high. It conducts its own survey. Out of 76
Americans surveyed, only two had seen or sensed the presence of an
angel. As a result of the contingent’s survey, would you agree with
the Newsweek poll? Use a 1% percent level of significance to test
the claim of the contingent.
a)
State...
A poll done for an organization found that 13% of Americans have seen or sensed the...
A poll done for an organization found that 13% of Americans have
seen or sensed the presence of an angel. A contingent doubts that
the percent is really that high. It conducts its own survey. Out of
78 Americans surveyed, only two had seen or sensed the presence of
an angel. As a result of the contingent's survey, would you agree
with the organization's poll? Conduct a hypothesis test at the 5%
level.
Note: If you are using a Student's...
A Gallup poll found that 493 of 1050 adult Americans believe it is the responsibility of...
A Gallup poll found that 493 of 1050 adult Americans believe it
is the responsibility of the federal government to make sure all
Americans have healthcare coverage. Construct and interpret a 90%
confidence interval for the proportion of adult americans who
believe it is the federal governments responsibility to make sure
all americans have coverage? What does this interval suggest?
1) In a recent poll, the Gallup organization found that 45% of adult Americans believe that...
1) In a recent poll, the Gallup organization found that 45% of
adult Americans believe that the overall state of moral values in
the United States is poor. Suppose a survey of a random sample of
25 adult Americans is conducted in which they are asked to disclose
their feelings on the overall state of moral values in the United
States. Answer the questions below, showing work. Bare answers are
not acceptable. (Showing work means writing the calculator command
you...
1) In a recent poll, the Gallup organization found that 45% of adult Americans believe that...
1) In a recent poll, the Gallup organization found that 45% of
adult Americans believe that the overall state of moral values in
the United States is poor. Suppose a survey of a random sample of
25 adult Americans is conducted in which they are asked to disclose
their feelings on the overall state of moral values in the United
States. Answer the questions below, showing work. Bare answers are
not acceptable. (Showing work means writing the calculator command
you...
Please Answer the following regarding probability: 6. A 2011 Gallup poll found that 76% of Americans...
Please Answer the following regarding probability:
6. A 2011 Gallup poll found that 76% of Americans believe that
high achieving high school students should be recruited to become
teachers. This poll was based on a random sample of 1002
Americans.
a) Find a 90% confidence interval for the proportion of
Americans who would agree with this.
b) Interpret your interval in this context.
Please show all work.
Please typed answers only, no handwriting.
Problem 1: Healthcare for all American A Gallup poll found that 493 of 1050 adult Americans...
Problem 1: Healthcare for all American A Gallup poll found that
493 of 1050 adult Americans believe it is the responsibility of the
federal government to make sure all Americans have healthcare
coverage. 1. What is the sample in this study? What is the
population of interest? 2. What is the variable of interest in this
study? Is it qualitative or quantitative? 3. Based on the results
of this study, obtain a point estimate for the proportion of adult
Americans...
. A poll found that 36% of U.S. teens aged from 13 to 17 years old...
. A poll found that 36% of U.S. teens aged from 13 to 17 years
old have a computer with Internet access in their rooms. The poll
was based on a random sample of 1028 teens.
A) Give the 98% confidence interval for the population
proportion, p.
B) What does the interval in part (A) mean in this context. Be
as specific as possible
C) How big of a sample must we take in order to ensure that we
are...
1.A poll conducted found that out of 1748 adult Americans without tattoos, 944 of them believe...
1.A poll conducted found that out of 1748 adult Americans
without tattoos, 944 of them believe that individuals with tattoos
are more rebellious. Construct a 95% CI for the
population proportion.
CI = (, )
2. A poll conducted found that for a sample of 1006 adult
Americans, the sample mean number of books read during the past
year was 13.4 and the sample standard deviation was 16.6. Construct
a 99% CI for the population mean.
CI = ( ,...
A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia...
A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17)
suffer from arachnophobia and are extremely afraid of spiders. At a
summer camp there are 12 teenagers sleeping in each tent. Assume
that these 12 teenagers are independent of each other.
(a) Calculate the probability that at least 4 of them suffers from
arachnophobia.
(b) Calculate the probability that exactly 4 of them suffer from
arachnophobia.
(c) Calculate the probability that at most 11 of them suffers...
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