QUESTION 1A recent study of over 1000 parents on cyberbullying showed that a 95% confidence interval of proportion of kids whofaced bullying in social media sites and apps is (0.1200, 0.1433). Find the sample proportion of kids who faced bullying insocial media sites and apps. Round your answer to four decimal places.QUESTION 2The amount of time a bank teller spends with each customer has a population mean of 5 minutes and a standarddeviation of 1.5 minute. If a random sample of 36 customers is selected, what is the probability that the sample mean isless than 4.5 minutes? Round your answer to four decimal places.QUESTION 3The daily electrical energy consumption (in Watts) during July for a random sample of households was recorded. Themean was 3399 W and the standard deviation was 316 W. Assume the underlying distribution of the consumption isnormal. Find the marging of error E of the 95% confidence interval for the mean daily electrical energy consumptionduring that month. Round your answer to two decimal places.الممسوحة ضوئيا بـ ICS CamScanner

Since you have posted multiple questions, we will provide the solution only to the first question as…

Answered: A recent study of over 1000 parents on…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Colleges announce an "average" SAT score for their entering freshmen. Usually the college would like this "average" to be as high as possible. A NewYork Times article noted, "Private colleges that buy lots of top students with merit scholarships prefer the mean, while open-enrollment public instituions like medians." Use what you know about the behavior of means and medians to explain these differences.
Logan and Brian began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Logan took a test in Art History and earned a 76.8, and Brian took a test in English and earned a 68.9. Use the fact that all the students' test grades in the Art History class had a mean of 71.9 and a standard deviation of 11.6, and all the students' test grades in English had a mean of 61 and a standard deviation of 9.4 to answer the following questions.a) Calculate the z-score for Logan's test grade.z=z= [Round your answer to two decimal places.] b) Calculate the z-score for Brian's test grade.z=z= [Round your answer to two decimal places.]c) Which person did relatively better? Logan Brian They did equally well.
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
A survey was conducted that asked 1013 people how many books they had read in the past year. Results indicated that x=10.3 books and s=16.6books. Construct a 90% confidence interval for the mean number of books people read. Interpret the interval. Construct a 90% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to two decimal places as needed.) A. There is a 90% probability that the true mean number of books read is between ___ and ____ B. There is 90% confidence that the population mean number of books read is between ___ and ____. C. If repeated samples are taken, 90% of them will have a sample mean between ___ and ___.
two fifth grade classes have nearly identical mean scores on an aptitude test, but one class has a standard deviation three times that of the other. all other factors being equal, which class is easier to teach and why?
Each of a sample of 171 residents selected from a small town is asked how much money he or she spent last week on state lottery tickets. 90 of the residents responded with $0 . The mean expenditure for the remaining residents was $23 . The largest expenditure was $250 --> What is the mode of the data?
The median of a sample with data values of 8,19,12,17,16 is?
Explain the difference between the family confidence level and the individual confidence level.
You would like to be able to predict students' grade point averages based on the number of hours they study every week. You randomly select 500 students and have them report their GPA and number of hours they study per week. What statistical test will allow you to predict GPA based on the number of hours a student studies per week? And what is the research question?
A survey was conducted that asked 963 people how many books they had read in the past year. Results indicated that x=14.7 books and s=17.8 books. Construct a 90% confidence interval for the mean number of books people read. Interpret the interval.Construct a 90% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice.(Use ascending order. Round to two decimal places as needed.)A. If repeated samples are taken, 90% of them will have a sample mean between ___ and ____ B. There is a 90% probability that the true mean number of books read is between ____ and ___ C. There is a 90% confidence that the population mean number of books read is between ___ and ___

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

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