Homework Help is Here – Start Your Trial Now!
Math
Statistics
) Use your regression equation to predict the height of an eruption if it has been 15 hours since the last erruption. Round your answer to one decimal place. Predicted height: ? meters

) Use your regression equation to predict the height of an eruption if it has been 15 hours since the last erruption. Round your answer to one decimal place. Predicted height: ? meters

MATLAB: An Introduction with Applications
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
icon
Related questions
Question

(C) Use your regression equation to predict the height of an eruption if it has been 15 hours since the last erruption. Round your answer to one decimal place.

Predicted height: ? meters

You work for a regional geological survey and are studying the eruptions of a local geyser. Your study includes modelling the height of the geyser's eruptions based on the period of time since the last eruption. You are going to collect a random sample of 11 of the geyser's eruptions and for each note the time since the last eruption (denoted by x, in hours) and the height of the eruption (denoted by y, in meters). You will also note the product x'y of the time and the height for each eruption. (These products are written in the row labeled "xy"). (a) Click on "Take Sample" to see the results for your random sample. Time since last eruption, x 7 17 12 19 8 9 7 12 16 5 (in hours) Take Sample Eruption height, y 16.3 40.9 36.6 48.5 22.7 47.1 28.1 24.8 29.2 35.4 19.2 (in meters) 695.3 439.2 5 | 181.6 ху 114.1 921.5 989.1 252.9 173.6 350.4 566.4 96 Send data to calculator Based on the data from your sample, enter the indicated values in the column on the left below. Round decimal values to three decimal places. When you are done, select "Compute". (In the table below, n is the sample size and the symbol E xy means the sum of the values xy.) n: Sample correlation coefficient (r): X : y: U Slope (b,): s: 0 21
Transcribed Image Text:You work for a regional geological survey and are studying the eruptions of a local geyser. Your study includes modelling the height of the geyser's eruptions based on the period of time since the last eruption. You are going to collect a random sample of 11 of the geyser's eruptions and for each note the time since the last eruption (denoted by x, in hours) and the height of the eruption (denoted by y, in meters). You will also note the product x'y of the time and the height for each eruption. (These products are written in the row labeled "xy"). (a) Click on "Take Sample" to see the results for your random sample. Time since last eruption, x 7 17 12 19 8 9 7 12 16 5 (in hours) Take Sample Eruption height, y 16.3 40.9 36.6 48.5 22.7 47.1 28.1 24.8 29.2 35.4 19.2 (in meters) 695.3 439.2 5 | 181.6 ху 114.1 921.5 989.1 252.9 173.6 350.4 566.4 96 Send data to calculator Based on the data from your sample, enter the indicated values in the column on the left below. Round decimal values to three decimal places. When you are done, select "Compute". (In the table below, n is the sample size and the symbol E xy means the sum of the values xy.) n: Sample correlation coefficient (r): X : y: U Slope (b,): s: 0 21
Slope (b,): S : E xy: I y-intercept (b,): Compute (b) Write the equation of the least-squares regression line for your data. Then on the scatter plot for your data, graph this regression equation by plotting two points and then drawing the line through them. Round each coordinate to three decimal places. Regression equation: y = | y 55+ 50+ 45+ 40+ 35+ 30 25 20- 15+ 10- Eruption height (in meters)
Transcribed Image Text:Slope (b,): S : E xy: I y-intercept (b,): Compute (b) Write the equation of the least-squares regression line for your data. Then on the scatter plot for your data, graph this regression equation by plotting two points and then drawing the line through them. Round each coordinate to three decimal places. Regression equation: y = | y 55+ 50+ 45+ 40+ 35+ 30 25 20- 15+ 10- Eruption height (in meters)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
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