MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Bartleby Related Questions Icon

Related questions

Q: Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the…
A: The sample of teenagers time is 3.0, 4.25, 5.5, 3.5, 7.0, 6.3, 2.0, 4.5, 3.7, 3.6.
Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…
A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…
Q: According to a Harvard Health Publishing article, the normal body temperature may be  lower than…
A:
Q: The U.S. Census Bureau computed the proportion of U.S. residents who lived in each of the four…
A: Solution: Given information: k= 4  Categories  n= 80+129+209+118 = 536  total observation   α=0.05…
Q: Find the test statistic for this hypothesis test. z= (Round to two decimal places as needed.)
A:
Q: Fewer young people are driving. In year A, 64.9% of people under 20 years old who were eligible had…
A: You may need to use the appropriate appendix table or technology to answer this question.Fewer young…
Q: If a researcher reports a t-statistic with degree of freedom 19, how many individual subjects…
A: Given: Degree of freedom = 19
Q: 2) If all of the values in a set of data were doubled, what would happen to the variance?
A: We need to use the concept of variance.
Q: According to a study on reptiles from decades ago, the mean lifespan of giant Aldabra tortoises in…
A: Sample of size(n)=21Sample mean()=96.3Sample standard deviation(s)=15.2Population mean()=98.3and…
Q: Any basketball fan knows that Shaquille O'Neal, one of the NBA's most dominant centers of the last…
A: Given that  The overall made free throws percentage is 53.3% Random sample size (n) = 39 Free throws…
Q: You may need to use the appropriate appendix table or technology to answer this question. Fewer…
A: For the year A, sample proportion: sample size: For the year B, sample proportion: sample size:
Q: If the sample size is n=16 what is likely true about the shape of the population?
A: Solution:  Central limit theorem: The central limit theorem state that as the sample size increases…
Q: Twittering away The Pew Internet and American Life Project asked a random sample of 2253 U.S.…
A: Given Information: Sample size n=2253 Sample proportion p^=0.19
Q: After reading an article using research done by the Organization for Economic Co-operation and…
A: The 95% confidence interval for p is (0.25, 0.32).
Q: An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans…
A: p^=xn= 2255= 0.40
Q: Suppose that you have obtained data by taking a random sample from a population. Before performing a…
A: For a random sample that is selected from a population, the following steps have to be done in order…
Q: Any basketball fan knows that Shaquille O’Neal, one of the NBA’s most dominant centers of the last…
A: From the provided information, Shaq made 26 of 39 free-throw attempts. Sample size (n) = 39 Sample…
Q: f the 20th and 60th percentiles of a normal random variables are -4.3 and 15.8, respectively. What…
A:
Q: Any basketball fan knows that Shaquille OʻNeal, one of the NBA's most dominant centers of the last…
A: Solution: Given information: n= 39  Sample size  x = 26 success  p^=xn= 2639= 0.6667  Sample…
Q: Given a normal population with mean = 39 and variance = 16, what is the probability of obtaining an…
A:
Q: The lifetime of an electronic device is modeled as an exponential random variable. If 16% of the…
A:
Q: a.     What statistical test will you use to test this data ?   b.     State the null and…
A: From provided information it is claimed that, women’s movement has resulted in an increase in the…
Q: If 25% of boys born weigh over 20 lbs and a sample of 150 was taken what are the odds that 35 or…
A:
Q: The mean and variance of a sample of 25 data items are 78 and 100, respectively. Use Chebyshev's…
A:
Q: Of all the pupils in a particular school, 45 % go to school by bus. In a random sample of 30 pupils,…
A:
Q: Suppose that if an adult falls in the bottom 5% of the distribution of the amount of blood of…
A: Note: Hi there! Thank you for posting the question. Unfortunately your question has missing…
Q: You may need to use the appropriate appendix table or technology to answer this question. Fewer…
A: Given, For A : P^ = 62.9% = 0.629, n = 1500 For B : p^ = 48.7% = 0.487, n = 1500
Question
According to a study, the proportion of people who are satisfied with the way things are going in their lives is 0.80. Suppose that a random sample of 100 people is obtained
According to a study, the proportion of people who are satisfied with the way things are going in their lives is 0.80. Suppose that a random sample of 100 people is obtained. Complete parts (a) through (c) below. *Click here to view the standard normal distribution table (page 1).* *Click here to view the standard normal distribution table (page 2).* --- **(b) Explain why the sample proportion, p̂, is a random variable. What is the source of the variability?** - **O A.** The sample proportion p̂ is a random variable because the value of p̂ represents a random person included in the sample. The variability is due to the fact that people may not be responding to the question truthfully. - **O B.** The sample proportion p̂ is a random variable because the value of p̂ represents a random person included in the sample. The variability is due to the fact that different people feel differently regarding their satisfaction. - **O C.** The sample proportion p̂ is a random variable because the value of p̂ varies from sample to sample. The variability is due to the fact that different people feel differently regarding their satisfaction. - **O D.** The sample proportion p̂ is a random variable because the value of p̂ varies from sample to sample. The variability is due to the fact that people may not be responding to the question truthfully. --- **(c) Describe the sampling distribution of p̂, the proportion of people who are satisfied with the way things are going in their life. Be sure to verify the model requirements.** Since the sample size is no less than 5% of the population size and np(1 - p) ≥ 10, the distribution of p̂ is [normal distribution symbol] with μᵖ̂ = [0.80] and σᵖ̂ = [0.040]. [Next Button]
expand button
Transcribed Image Text:According to a study, the proportion of people who are satisfied with the way things are going in their lives is 0.80. Suppose that a random sample of 100 people is obtained. Complete parts (a) through (c) below. *Click here to view the standard normal distribution table (page 1).* *Click here to view the standard normal distribution table (page 2).* --- **(b) Explain why the sample proportion, p̂, is a random variable. What is the source of the variability?** - **O A.** The sample proportion p̂ is a random variable because the value of p̂ represents a random person included in the sample. The variability is due to the fact that people may not be responding to the question truthfully. - **O B.** The sample proportion p̂ is a random variable because the value of p̂ represents a random person included in the sample. The variability is due to the fact that different people feel differently regarding their satisfaction. - **O C.** The sample proportion p̂ is a random variable because the value of p̂ varies from sample to sample. The variability is due to the fact that different people feel differently regarding their satisfaction. - **O D.** The sample proportion p̂ is a random variable because the value of p̂ varies from sample to sample. The variability is due to the fact that people may not be responding to the question truthfully. --- **(c) Describe the sampling distribution of p̂, the proportion of people who are satisfied with the way things are going in their life. Be sure to verify the model requirements.** Since the sample size is no less than 5% of the population size and np(1 - p) ≥ 10, the distribution of p̂ is [normal distribution symbol] with μᵖ̂ = [0.80] and σᵖ̂ = [0.040]. [Next Button]
**Study on Satisfaction Rates** According to a study, 80% (0.80) of people are satisfied with the way things are going in their lives. Suppose a random sample of 100 people is obtained. **Tasks:** - **View Standard Normal Distribution Tables:** - Page 1 - Page 2 **Question (a):** If a random sample of 100 people is asked, "Are you satisfied with the way things are going in your life?" Is the response to this question qualitative or quantitative? Explain. - **Options:** - **A.** The response is quantitative because the number of people satisfied can be counted. - **B.** The response is qualitative because the number of people satisfied can be counted. - **C.** The response is qualitative because the responses can be classified based on the characteristic of being satisfied or not. - **D.** The response is quantitative because the responses can be classified based on the characteristic of being satisfied or not. **Question (b):** Explain why the sample proportion, \( \hat{p} \), is a random variable. What is the source of variability? - **Options:** - **A.** The sample proportion \( \hat{p} \) is a random variable because the value of \( \hat{p} \) represents a random person included in the sample. The variability is due to the fact that people may not be responding to the question truthfully. - **B.** The sample proportion \( \hat{p} \) is a random variable because the value of \( \hat{p} \) represents a random person included in the sample. The variability is due to the fact that different people feel differently regarding their satisfaction. **Instructions:** - Review the options carefully. - Consider the nature of qualitative versus quantitative data. - Understand the concept of sample proportion as a random variable. - Reflect on the sources of variability in survey responses. Finally, select the most appropriate response before proceeding to the next step.
expand button
Transcribed Image Text:**Study on Satisfaction Rates** According to a study, 80% (0.80) of people are satisfied with the way things are going in their lives. Suppose a random sample of 100 people is obtained. **Tasks:** - **View Standard Normal Distribution Tables:** - Page 1 - Page 2 **Question (a):** If a random sample of 100 people is asked, "Are you satisfied with the way things are going in your life?" Is the response to this question qualitative or quantitative? Explain. - **Options:** - **A.** The response is quantitative because the number of people satisfied can be counted. - **B.** The response is qualitative because the number of people satisfied can be counted. - **C.** The response is qualitative because the responses can be classified based on the characteristic of being satisfied or not. - **D.** The response is quantitative because the responses can be classified based on the characteristic of being satisfied or not. **Question (b):** Explain why the sample proportion, \( \hat{p} \), is a random variable. What is the source of variability? - **Options:** - **A.** The sample proportion \( \hat{p} \) is a random variable because the value of \( \hat{p} \) represents a random person included in the sample. The variability is due to the fact that people may not be responding to the question truthfully. - **B.** The sample proportion \( \hat{p} \) is a random variable because the value of \( \hat{p} \) represents a random person included in the sample. The variability is due to the fact that different people feel differently regarding their satisfaction. **Instructions:** - Review the options carefully. - Consider the nature of qualitative versus quantitative data. - Understand the concept of sample proportion as a random variable. - Reflect on the sources of variability in survey responses. Finally, select the most appropriate response before proceeding to the next step.
Expert Solution
Check Mark
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
See solutionCheck out a sample Q&A here
Step 1
VIEW
Step 2
VIEW
bartleby

Step by stepSolved in 2 steps

See solution
Check out a sample Q&A here
Blurred answer
Knowledge Booster
Background pattern image
Similar questions
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
SEE MORE TEXTBOOKS