A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that o is $2.12. Construct the 90% and 99% confidence intervals for the populationmean. Interpret the results and compare the widths of the confidence intervals.20.1717.0217.4515.23The 90% confidence interval is ($.$).(Round to two decimal places as needed.)16.1718.9618.1518.0416.7122.0316.9118.4319.4322.7920.4121.98

From the provided information, Population standard deviation (σ) = 2.12 Sample size (n) = 16…

Answered: A random sample of the closing stock…

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

You work for a soft-drink company in the quality control division. You are interested in the standard deviation of one of your production lines as a measure of consistency. The product is intended to have a mean of 12 ounces, and your team would like the standard deviation to be as low as possible. You gather a random sample of 15 containers. Estimate the population standard deviation at a 90% level of confidence. Use 3 decimal places for all answers. 12.11 11.99 11.88 12.04 12.11 12 12.16 12.18 12.16 12.01 12.12 12.02 12.05 12.04 12.27 (Data checksum: 181.14) a) Find the sample standard deviation: b) Find the lower and upper �2 critical values at 90% confidence:Lower: Upper: c) Report your confidence interval for �: ( , )
You are interested in finding a 95% confidence interval for the average commute that non- residential students have to their college. The data below show the number of commute miles for 14 randomly selected non-residential college students. Round answers to 3 decímal places where possible. 24 7 5 15 23 7 13 15 27 16 12 16 19 21 a. To compute the confidence interval use a ? distribution. b. With 95% confidence the population mean commute for non-residential college students is between and miles. c. If many groups of 14 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About these confidence intervals will contain the true population mean number of commute miles and about percent of percent will not contain the true population mean number of commute miles.
The answer for 7
Please answer within 30min thanks. n = 29 for the 90% confidence interval for the mean.
Textbook example
Answer these question
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. 10. A random sample of 40 home theater systems has a mean price of $126.00. Assume the population standard deviation is $16.70. Construct a 90% confidence interval for the population mean. The 90% confidence interval is (nothing,nothing)
You are interested in finding a 90% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 13 randomly selected college students. Round answers to 3 decimal places where possible. 7 8 8 0 2 11 6 10 2 0 1 3 1 With 90% confidence the population mean number of days of class that college students miss is between and days.
X) 6.1.36-T Question He You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 44 business days, the mean closing price of a certain stock was $116.84. Assume the population standard deviation is $9.81. The 90% confidence interval is ( ). (Round to two decimal places as needed.) Question Viewer Enter your answer in the edit fields and then click Check Answer. 3 parts remaining Clear All Check Answer 11:13 AM 2 Type here to search N 1/12/2021 Del PrtScn F8 Home F9 End F10 PgUp F11 Ins DII F5 F12 Esc F6 F7 F1 F2 F3 F4 C@ %23 & Backsp 8 9- 2 P LEGO (8) 7
Answer these question
A stock price is currently $40. It is known that at the end of 1 year it will be either $48or $32. The risk-free Interest rate is 5% per annum with continuous compounding. What is the value of a portfolio today with a strike price of $527 (use A-0.25) Hint: draw a tree

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