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Linear Regression
Page 2
Questions (406)
For the following dataset, enter the data into a calculator and find the least square regression line, correlation coefficient,
3 answers
asked by
bowershe
625 views
TABLE 1
The general manager of a chain of pharmaceutical stores reported the results of a regression analysis, designed to
4 answers
asked by
Maggie
1,652 views
In a simple linear regression you are told that the estimate of the slope coefficient was 0.9 and that the "t-statistic" for
3 answers
asked by
sissy
911 views
Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player
3 answers
asked anonymously
58 views
You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your
4 answers
asked anonymously
98 views
The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation
3 answers
asked by
Rhanda
363 views
Posted by grant on Saturday, May 12, 2007 at 9:20am.
The table shows the depth (d metres) of water in a harbour at certain times
3 answers
asked by
grant
741 views
An airline company wishes to build a predictor for whether or not a passenger will show up on time for a flight (a yes/no
2 answers
asked anonymously
62 views
An aerospace manufacturing company would like to assess the performance of its existing planes for its latest design. Based on a
2 answers
asked anonymously
51 views
In the setting of deterministic design for linear regression, we assume that the design matrix \mathbb {X} is deterministic
2 answers
asked anonymously
57 views
Assume that n=p, so that the number of samples matches the number of covariates, and that \mathbb {X} has rank n. Recall that
2 answers
asked anonymously
52 views
0.a)Whatarethedangersofestimatingamodelwithoutanintercept?
Qg= 150.83ā0.75Pg+ 0.37Po+0.65Y.
1 answer
asked by
William wandwi
59 views
Definition of model without intercept
1 answer
asked by
William wandwi
50 views
What is the assumption underlying the linear regression models
i.Derive the least -squares estimates by any parameters of your
1 answer
asked by
Evaristi Paulo
64 views
What is the assumption underlying the linear regression models
i.Derive the least -squares estimates by any parameters of your
1 answer
asked by
Evaristi Paulo
81 views
. The sales of a company (in million dollars) for each year are shown in the table below.
x (year) 2005 2006 2007 2008 2009 y
2 answers
asked by
vcadn
135 views
The following table shows the daily distances of a person training to become a runner. Write the line of best fit for the data
3 answers
asked by
Hales
354 views
Let š“ and šµ be independent random variables with means 1, and variances 1 and 2, respectively.
Let š=š“āšµ and
1 answer
asked by
Keith
654 views
I'm currently working on a project to see which data imputation method works best with a dataset I have.
I have the complete
1 answer
asked by
Ashley
271 views
Let A and B be independent random variables with means 1, and variances 1 and 2, respectively.
Let X=AāB and Y=A+B. Find the
4 answers
asked by
Ann
2,756 views
Please DO NOT use any tutor's screenname in your name.
āāāāāāāāāāāāā A college football coach wants to
1 answer
asked by
Writeacher
417 views
Using the data from question #1, what is the equation of the line of best fit? (For future reference: line of best fit, linear
2 answers
asked by
jasmine
578 views
You research the average cost of a tank of gasoline for a certain type of car for several recent years to look for trends. The
3 answers
asked anonymously
56 views
You research the average cost of a tank of gasoline for a certain type of car for several recent years to look for trends. The
3 answers
asked anonymously
44 views
Linear regression analysis is based on identifying independent variables and gathering historical data for these variables.Name
5 answers
asked by
Bravo
549 views
A researcher compared the heights and shoe sizes for 50 men, selected at random. The equation shown describes a line of the best
3 answers
asked anonymously
150 views
The author of a book series increases the number of pages with each book, as shown in the table. A line of best fit for this
3 answers
asked anonymously
50 views
A linear regression line y = 0.8x-10 is computed to predict the final exam score y on the basis of the first score x on the
2 answers
asked by
Nora trevino
732 views
Runner Inc. a U.S. athletic shoe manufacturer estimates he following linear trend model for shoe sales: Qt = a = bt + c1D1 +
1 answer
asked by
Ibrahim
462 views
transformation necessary to linearize the data. Be sure to convince me that you understand.
3 answers
asked by
Hep
597 views
Help me please
The table shows the distance and costs of flights for a given airline with the same starting destination and
1 answer
asked by
Me and I
600 views
Explain the transformation needed to convert the following data to a linear data set.
{(1, 0.98), (2, 1.39), (3, 1.71), (4,
1 answer
asked by
helen
429 views
Explain the transformation needed to convert the following data to a linear data set.
{(1, 0.98), (2, 1.39), (3, 1.71), (4,
1 answer
asked by
helen
415 views
For the following dataset, describe in a sentence or two the transformation necessary to linearize the data. Be sure to convince
2 answers
asked by
bowershe
574 views
I have population data for the last 50 years (total population for a country), that I need to make linear. In its original it
4 answers
asked by
Annita
871 views
24. You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for
3 answers
asked by
LadyPhantomhive
1,170 views
Consider the linear model yi =xiB + ei or, in matrix notation Y= X'B + e. where X' is a vector n * 1. You estimate the model
2 answers
asked by
Joy
572 views
3. A tutoring site wants to see how time spent studying for its content exams affects the ultimate scores. It asked its finite
2 answers
asked by
Joy
554 views
A tutor website wants to see how time spent studying for its content exams affects the ultimate scores. It asked its finite math
1 answer
asked by
Joy
489 views
An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is
2 answers
asked by
Simone
711 views
Use the following table to answer the questions. (Give your answers correct to two decimal places.)
x 1 1 3 3 5 5 7 7 9 9 y 3 2 6
1 answer
asked by
Tracy
599 views
Use the following table to answer the questions. (Give your answers correct to two decimal places.)
x 1 1 3 3 5 5 7 7 9 9 y 3 2 6
1 answer
asked by
Tracy
707 views
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10
10 answers
asked by
tracy12
550 views
Use the following table to answer the questions. (Give your answers correct to two decimal places.)
x 1 1 3 3 5 5 7 7 9 9 y 3 2 6
2 answers
asked by
Tom 12
805 views
What are the coefficients "a" and "b" of the Linear Least Mean Squares (LLMS) estimator in the equation VĖL = aU + b, given
2 answers
asked by
TAZ
2,284 views
What does the best estimate mean after doing the liner regression equation
5 answers
asked by
Anonymous
761 views
What does the best estimate mean after doing the liner regression equation
1 answer
asked by
Anonymous
308 views
*I have asked countless people to help me with this story problem and nobody seems to know how to do it! Please help!
Natalie
1 answer
asked by
Brittany
491 views
A linear model can be used to describe the relationship between fuel economy(mpg) and horsepower (hp) for certain automobile
2 answers
asked by
Melissa
897 views
If X and Y are uncorrelated in the population, the expected value of the estimated linear regression coefficient (slope) is 0.
Tr
1 answer
asked by
Mickie
342 views
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Algebra
Algebra, Sub-sub-category: Linear Regression
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