Given are five observations for two variables, and Y.Develop the 95% confidence and prediction intervals when x = 18.(to 4 decimals)X (to 3 decimals)(to 4 decimals)St-valueSû*SpredConfidence Interval for x = 18(to 4 decimals)Prediction Interval for x = 18) (to 2 decimals)) (to 2 decimals)Xi3Yi 78 12 16 2216The two intervals are different because there is more variability associated with predicting an individual10 22+20value than there is a meanvalue.

Answer : by using the linear regression

Answered: prediction intervals when * = 18.…

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

Construct a 95% confidence interval containing the population mean of the height of giraffes if a sample of 29 giraffes has mean height x¯= 15.7 feet and sample standard deviation s= 2.6 feet. (showing what you entered on the calculator)
Which interval, would be appropriate to find a 90% confidence interval for a random sample of 28 days in a recent year, US gasoline prices had a sample mean of $2.34 and standard deviation of $0.32
In a company, mean of salary of the 50 engineers is 7600$. Assuming that the salaries are normally distributed with σ = 5625$. a) Calculate 90%, 95% and 99% confidence intervals for the mean. b) Find Q3 and 70th percentile. c) If the confidence interval is between (5873.7756, 9326.2244), what is the confidence level?
The mean and standard deviation of a random sample of n measurements are equal to 34.4 and 3.6, respectively. a. Find a 90% confidence interval for μ if n=64. b. Find a 90% confidence interval for μ if n=256. c. Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient fixed?
Suppose we are interested to construct a 95% confidence interval of the mean exam score. A random sample of 36 scores is taken and gives a sample mean (sample mean score) of 68. EBM will be the largest a. when the population standard deviation is 12 points. b. when the population standard deviation is 18 points. c. when the population standard deviation is 20 points. d. when the population standard deviation is 15 points.
Two different researchers measured the weight of two separate samples of ruby-throated hummingbirds from the same population. Each calculated a 95% confidence interval for the mean weight of these birds. Research 1 found the 95% confidence interval to be 3.12 g < mu< 3.48g, while Researcher 2 found the 95% confidence interval to be 3.05 g < mu < 3.62g. Answer these 3 questions.
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.
Find the 2-decimal answers for a 96% confidence interval if a samle of 56 students have a mean height of 51 inches and the population standard deviation is 2.35 inches. 1. Small number on the interval 2. Large number on the interval 3. Margin of error
Suppose that a random sample of 11 adult US males has a mean height is 69 inches with a standard deviation of 2.9 inches. If we assume that the height of adult males in the US are normally distributed, find a 90% confidence interval for the mean height of all US meals. Give the lower limb and upper limit of the 90% confidence interval. Carrier intermediate computations to at least three decimal places. Andrew answers to one decimal point.
The mean diastolic blood pressure for a random sample of 50 people was 96 millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be 8 millimeters of mercury, find a 95% confidence interval for the true mean diastolic blood pressure of all people. Carry the intermediate computations to at least three decimal places. Round the answers to one decimal place. (a) What is the lower limit of the 95% confidence interval? (b) What is the upper limit of the 95% confidence interval?
1. Compare the 95% and 99% confidence intervals for the size of students’ shoes. Explain the difference between these intervals and why this difference occurs. 95% SE 0.341273t-value 2.032245Margin of Error 0.693551Lower Limit 8.735449Upper Limit 10.122551 99% SE 0.341273t-value 2.728394Margin of Error 0.931128Lower Limit 8.497872Upper Limit 10.360128
Suppose a certain species of bird has an average weight of = 3.10 grams. Based onprevious studies, we can assume that the weights of these birds have a normal distributionwith σ = 0.21 grams. For a small group of 13 birds, find the margin of error for a 70%confidence interval for the average weights of these birds. Group of answer choices 0.03 grams 0.06 grams 0.52 grams 0.01 grams 0.11 grams

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

prediction intervals when * = 18. ecimals) S m 20 Yi 7 16 C 10 16 N 22 20