The accompanying frequency distribution summarizessample data consisting of ages of randomly selectedinmates in federal prisons. Use the data to construct a99% confidence interval estimate of the mean age of allinmates in federal prisons.Age (years)Number16–251326–356036-456646-553656-6515Over 654Using the class limits of 66–75 for the "over 65" group, find the confidence interval.

Given: Age Number 16-25 13 26-35 60 36-45 66 46-55 36 56-65 15 66-75 4

Answered: Using the class limits of 66–75 for the…

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

data consist of height measurements in centimeters of 5 randomly selected children at ages 3 and 5. Assume data are observed from 2 independent normal populations. find a 95% confidence interval of the form (a,b) with -inf < a < b < +inf for the difference in height among children between ages 3 and 5
Express the confidence interval 68.8%<p<84% in the form of p±ME.___% ± ___%
A sample of eight observations is taken from a distribution with unknown mean. Your sample mean is 8.19 and the standard deviation is 0.72. Find the 90% coincidence interval for that true mean of distribution? Lower Limit: Upper Limit: (Round to 2 decimals)
Suppose a certain species bird has an average weight of x = 3.2 grams. Based on previous studies we can assume that the weights of these birds have a normal distribution with sigma = 0.34 grams. For a small group of 18 birds , find a 98% confidence interval for the average weights of these birds. Write answer in interval notation with two decimal places.
6.2.9-T Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c = 0.99, x= 13.8, s=4.0, n= 10 The 99% confidence interval using a t-distribution is ( D (Round to one decimal place as needed.)
n a random sample of 375 students at a university, 315 stated that they were nonsmokers. Based on this sample, compute a 95% confidence interval for the proportion of all students at the university who are nonsmokers. Then find the lower limit and upper limit of the 95% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. (If necessary, consult a list of formulas.) Lower limit: Upper limit:
A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of 13. The psychologist randomly selects 100 children from this group and finds that their mean IQ score is 111. Based on this sample, find a 95% confidence interval for the true mean IQ score for all children of this group. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: 5? Upper limit:
Construct a 99% confidence interval to estimate the population mean using the data below. x-51 0 =9 n= 43 With 99% confidence, when n= 43 the population mean is between a lower limit of and an upper limit of (Round to two decimal places as needed.) Enter your answer in each of the answer boxes. Save for Later. O Type here to search .::: ace F9 F1C F7 F8 F5 F6 F2 F3 F4 出

A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of 15. The psychologist randomly selects 80 children from this group and finds that their mean IQ score is 105. Based on this sample, find a 99% confidence interval for the true mean IQ score for all children of this group. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: ? Upper limit:
Express the confidence interval (29.2%,37%) in the form of ˆp±MEp.___% ± ___%
A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of 14. The psychologist randomly selects 80 children from this group and finds that their mean IQ score is 111. Based on this sample, find a 99% confidence interval for the true mean IQ score for all children of this group. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit:
Express the confidence interval (0.025,0.079) in the form of p-E

SEE MORE QUESTIONS

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

Using the class limits of 66–75 for the "over 65" group, find the confidence interval. |<µ< (Round to one decimal place as needed.)