A random sample of 1015 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1015 adults surveyed, 523 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1) Click here to view the standard normal distribution table (page 2) (a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without. 0.515 (Round to three decimal places as needed.) (b) Verify that the requirements for constructingg a confidence interval about p are satisfied. The sample can be as5sumed to be a simple random sample, the value of np 1-pis which is greater than or equal to 10, and the sample size is stated to not be less than or equal to 5% of the sample proportion. (Round to three decimal places as needed.) (c) Construct and interpret a 95 % confidence interval for the population proportion of adults in the country who believe that televisions are a luxury they could do without. Select the correct choice below and fill in any answer boxes within your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.)) O A. There is a % chance the proportion of adults in the country who believe that televisions are a luxury they could do without is between and OB. We are % confident the proportion of adults in the country who believe that televisions are a luxury they could do without is betweenand adults in the country believe that television is a luxury they could do without? Is it likely? (d) Is it possible that a supermajority (more than 60 % ) that a supermajority of adults in the country believe that television is a luxury they could do without because the 95 % confidence interval It is (Type an integer or a decimal. Do not round.) (e) Use the results of part (c) to construct a 95% confidence interval for the population proportion of adults in the country who believe that televisions are a necessity. The 95% confidence interval is (Round to three decimal places as needed.)
A random sample of 1015 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1015 adults surveyed, 523 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1) Click here to view the standard normal distribution table (page 2) (a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without. 0.515 (Round to three decimal places as needed.) (b) Verify that the requirements for constructingg a confidence interval about p are satisfied. The sample can be as5sumed to be a simple random sample, the value of np 1-pis which is greater than or equal to 10, and the sample size is stated to not be less than or equal to 5% of the sample proportion. (Round to three decimal places as needed.) (c) Construct and interpret a 95 % confidence interval for the population proportion of adults in the country who believe that televisions are a luxury they could do without. Select the correct choice below and fill in any answer boxes within your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.)) O A. There is a % chance the proportion of adults in the country who believe that televisions are a luxury they could do without is between and OB. We are % confident the proportion of adults in the country who believe that televisions are a luxury they could do without is betweenand adults in the country believe that television is a luxury they could do without? Is it likely? (d) Is it possible that a supermajority (more than 60 % ) that a supermajority of adults in the country believe that television is a luxury they could do without because the 95 % confidence interval It is (Type an integer or a decimal. Do not round.) (e) Use the results of part (c) to construct a 95% confidence interval for the population proportion of adults in the country who believe that televisions are a necessity. The 95% confidence interval is (Round to three decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A random sample of 1015 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1015 adults surveyed, 523 indicated that televisions are a
luxury they could do without. Complete parts (a) through (e) below.
Click here to view the standard normal distribution table (page 1)
Click here to view the standard normal distribution table (page 2)
(a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without.
0.515
(Round to three decimal places as needed.)
(b) Verify that the requirements for constructingg a confidence interval about p are satisfied.
The sample can be as5sumed to be a simple random sample, the value of np 1-pis which is greater than or equal to 10, and the
sample size
is stated to not be
less than or equal to 5%
of the sample proportion.
(Round to three decimal places as needed.)
(c) Construct and interpret a 95 % confidence interval for the population proportion of adults in the country who believe that televisions are a luxury they could do without. Select the correct choice below and fill in any answer
boxes within your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.))
O A. There is a % chance the proportion of adults in the country who believe that televisions are a luxury they could do without is between and
OB. We are
% confident the proportion of adults in the country who believe that televisions are a luxury they could do without is betweenand
adults in the country believe that television is a luxury they could do without? Is it likely?
(d) Is it possible that a supermajority (more than 60 % )
that a supermajority of adults in the country believe that television is a luxury they could do without because the 95 % confidence interval
It is
(Type an integer or a decimal. Do not round.)
(e) Use the results of part (c) to construct a 95% confidence interval for the population proportion of adults in the country who believe that televisions are a necessity.
The 95% confidence interval is
(Round to three decimal places as needed.)
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