Question
In: Statistics and Probability
A sample of 1000 people that live in a large city was asked if they believed...
- A sample of 1000 people that live in a large city was asked if
they believed that the city’s sales tax proposal was warranted. If
at least two-thirds of the city’s citizens believe that the sales
tax is warranted, then the mayor will take immediate steps to
formally propose the tax. The survey responses showed that 692 of
the 1000 people surveyed believe that the tax proposal is
warranted.
- Write the appropriate null and alternative hypotheses for the one-tailed test that could be used to determine if this test provides statistically significant evidence that the proposal has the required level of support.
- Find the test statistic.
- Find the critical value for α=0.05.
- What is the result of the hypothesis test? Why?
- Find the critical value for α=0.1.
- What is the result of this hypothesis test? Why?
- Based on the results of (d) and (f), what range of values will the p-value be in? How do you know? Do not calculate the p-value to justify your answer.
Solutions
orchestra answered 2 years agoRelated Solutions
A sample of 1000 people that live in a large city was asked if they believed...
A sample of 1000 people that live in a large city was asked if
they believed that the city’s sales tax proposal was warranted. If
at least two-thirds of the city’s citizens believe that the sales
tax is warranted, then the mayor will take immediate steps to
formally propose the tax. The survey responses showed that 692 of
the 1000 people surveyed believe that the tax proposal is
warranted.
Find the critical value for α=0.1.
What is the result of...
A random sample of n1 = 261 people who live in a city were selected and...
A random sample of n1 = 261 people who live in a city were
selected and 77 identified as a "dog person." A random sample of n2
= 101 people who live in a rural area were selected and 52
identified as a "dog person." Find the 95% confidence interval for
the difference in the proportion of people that live in a city who
identify as a "dog person" and the proportion of people that live
in a rural area...
In two consecutive years, 1000 adults in the magical community were asked if they believed that...
In two consecutive years, 1000 adults in the magical community
were asked if they believed that Voldemort had returned. The first
year, 43% believed that he had returned and in the second year, 47%
believed that he had returned.
1) Explain why it would be inappropriate to conclude, based on
these percentages alone, that the percentage of adults who believed
that Voldemort had returned increased from the first year to the
second year.
2) Assume that the conditions have been...
In a recent poll of 1000 People from California , 37.3% use Twitter. It is believed that...
In a recent poll of 1000 People from
California , 37.3% use Twitter. It is believed that the
true proportion of all Nova Scotians using Twitter is
35%.
What is the probability that the sample proportion of People
from California “Tweeting” in a random sample of 1000 would be
within 5% of the population proportion.
What is the probability that in a random sample of 1000 People
from California, 37.3% or more “Tweet”?
Given that the statistic in b) was actually...
A random sample of American was asked if they believed that everyone has an equal opportunity...
A random sample of American was asked if they believed that
everyone has an equal opportunity to obtain a quality education in
the U.S.A. Result shows below in the table.
Response
less High School
High School
Associate Degree
Bachelor Degree
Graduate Degree
Yes
312
542
31
102
44
No
88
209
22
70
33
At the 0.05 level of significance, test the claim that the
response is independent of a person’s level of education.
I did the work and got...
In a 500-1000 words, imagine you live in a mid-size city in the United States and...
In a 500-1000 words, imagine you live in a mid-size city in the
United States and are currently starting a business called
SafeHeaven which will focus on recreational activities. In your
opinon, Is there any other analysis to support this potential
business? why or why not?
A large city in a Western State has always believed that 60% of its citizens support...
A large city in a Western State has always believed that 60% of
its citizens support the addition of an ombudsmen among its city
council members. However, under the new mayor, there is doubt that
this proportion continues to hold. They poll 1600 people, and plan
to construct a 95% confidence interval. Suppose 50% of those polled
support the addition of an ombudsman. Give the number you would add
or subtract to the point estimate to build this interval.
(
You live in the city of San Francisco and your mother asked you about an article...
You live in the city of San Francisco and your mother asked you
about an article she just read that said an increase in the city's
minimum wage would increase prices at city restaurants and not lead
to a decrease in employment in the the city's restaurant industry.
In the article the local labor leaders said that in the past
increases in the minimum wage were not followed by layoffs. Back in
the day she took an economics course in...
A random sample of 320 college students were asked if they believed that places could be...
A random sample of 320 college students were asked if they
believed that places could be haunted and 80 responded yes.
Estimate the true proportion of college students who believe in the
possibility of haunted places with 99% confidence.
Stacy randomly survey 20 people and asked them how many people live in their home Let...
Stacy randomly survey 20 people and asked them how many people
live in their home
Let x=the number of people in each household
Let n=the number of people surveyed
response of the 20 people surveyed:
6
4
4
3
2
2
3
6
4
4
3
3
3
4
3
2
3
2
3
3
1.Obtain a 95% confidence interval for the mean number of people
per household
2.Using a=.05,
a)If your point estimate, μ>2.8, test to see if there...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- You have invested 30 percent of your portfolio in Jacob, Inc., 40 percent is Bella Co.,...
- Parallel Arrays This question is in MindTap Cengage Summary In this lab, you use what you...
- 5. You have invested 30 percent of your portfolio in Jacob, Inc., 40 percent is Bella...
- JAVA Write a test program that prompts the user to enter a series of integers and...
- (2) Cite an example on how organizations like Google, Facebook, Youtube etc collect data for image...
- The legal landscape is perpetually changing. Psychologists must remain abreast of these changes to avoid potentially...
- We are evaluating a project that costs $1.68 million, has a six-year life, and has no...
ADVERTISEMENT